The Other Parent Problem: Navigating Summer Co-Parenting
Summer co-parenting is one of those topics that exposes the gap between how blended and foster families look from the outside and what they actually require on a Wednesday in late June. When school is in session, the schedule does most of the work. The child goes from home to school to home and back again on a rhythm that both households have to respect regardless of whether they communicate well. Summer removes that structure, and what remains is a much more direct negotiation between adults who often have very different ideas about how children should spend their days, what rules apply, and who gets to decide.
I did not fully appreciate this dynamic until I was watching it unfold for the kids in my life. I saw firsthand what the transitions cost the kids: the few days of difficult behavior after most returns, the way they seemed to reassemble themselves after each crossing between worlds, the visible effort of holding two different sets of expectations in their heads simultaneously. That cost is real, and it is largely invisible to both households.
This post is for stepparents, blended-family parents, foster parents managing contact with biological families and shared arrangements. The specific circumstances vary considerably. The underlying dynamics have more in common than any of us usually acknowledge.
Why Summer Makes This Harder
During the school year, co-parenting conflict stays relatively contained because the schedule constrains everyone. Summer expands the window for friction: more transition days, longer stretches in each household, fewer external structures to absorb the differences between homes. Competing ideas about bedtimes, screens, activities, and how much freedom children should have become daily negotiations rather than occasional ones. Summer co-parenting can be an unusually difficult challenge.
The research on what actually harms children in divided-household arrangements is unambiguous on one point. It is not the division itself. A 2022 review synthesizing decades of research on divorce and child adaptation found that interparental conflict is the most consistently identified factor in children's difficulties, accounting for variability in outcomes far more than the custody arrangement itself. Children whose parents manage low-conflict co-parenting consistently do better than children exposed to ongoing conflict between households, regardless of how they divid their time.
The problem is that consistency and minimal conflict are exactly what summer pressure tends to erode. Competing schedules, long unstructured days, and the accumulated fatigue of managing two households through the heat of July do not bring out the best in most co-parenting arrangements.
Children who already carry trauma histories such as foster care and divorce are more sensitive to inconsistency between adults and more likely to read conflict between caregivers as evidence that the world is unsafe. What registers as a minor scheduling disagreement to the adults involved can land very differently on a child who already worries about conflict between adults.
The Return: What You Are Actually Managing
If you have a child who moves between your household and another, you already know the return. The first day or two after she comes back tends to be harder than the days before she left. She may be more defiant, more withdrawn, more irritable, more clingy, or simply more exhausted than circumstances seem to warrant. This is not manipulation. It is the cost of transition.
A 2021 study on family structure transitions found that the number of transitions a child experiences is independently associated with behavioral difficulties, and that exits and entrances from the family environment carry their own specific costs. Each transition between households requires a child to re-regulate: to shift from one set of rules, relationships, and emotional cues to another. For children who struggle with emotional regulation under ordinary circumstances, that re-regulation takes longer and looks worse.
Understanding this changes how to respond to it. The child who comes back from the other household and immediately picks a fight, refuses to engage, or dissolves over something minor is not reporting on the quality of that household or launching a campaign against your authority. She is coming down from the effort of the transition. The most useful response is not to address the behavior directly in the first few hours. It is to reduce the demands on her while she finds her footing again.
Some of the most experienced foster and stepparents I know have a deliberate re-entry protocol that they never named as such: low stimulation for the first few hours, a familiar meal, minimal new demands, and space to decompress before any conversation about what happened at the other house. For several years, we scheduled my youngest stepson’s returns from weekend visits to coincide with his Boy Scout meetings. He was able to be in a familiar environment that didn’t include us, giving him some emotional space before he came back home. None of these techniques requires coordination with the other household. It just requires recognizing what the transition actually costs our kids and planning accordingly.
When the Other Household Does Things Differently
It would be unusual, in any shared-parenting arrangement, for both households to operate identically. Different bedtimes, different food rules, different screen time expectations, different standards for chores, different levels of structure: these are normal. Children are genuinely capable of navigating different expectations in different contexts, the same way they navigate different rules at school and at home or at your house and a grandparent’s house. This is worth saying plainly, because a lot of co-parenting anxiety focuses on differences that matter more to adults than to children.
The differences that genuinely harm children are not the ordinary rule differences. They are conflict over those differences: adults who undermine each other's authority, who use children as messengers or informants, who treat the other household's choices as evidence of failure or malice, and who draw children into choosing sides. A 2021 PMC study on co-parenting, parenting styles, and child adjustment found that triangulation and conflict between co-parents have direct negative effects on children's mental health, with an additional indirect effect through the disruption of each parent's own parenting quality. In other words, conflict between households does not only hurt children directly. It also makes each parent less effective.
This is the finding I return to most often, because it reframes the whole question. You cannot control what happens in the other household. You cannot make the other parent parent the way you would, enforce the same rules, share your values about screen time or bedtimes or how much freedom a fourteen-year-old should have. What you can control is how you talk about those differences in your own home, how you respond when your child reports them, and whether you give your child permission to have a real relationship with the other household without requiring her to apologize for it.
What Not to Do with What Your Child Tells You
Summer means more time, which means more conversation, which means more information flowing between households through the children who move between them. Your child will tell you things about the other house. Some of those things will be accurate. Some will be incomplete. Some will be filtered through a child's interpretation of events he did not fully understand. Some will be things he is saying because he has learned it produces a reaction.
The hardest discipline I know in co-parenting situations is to receive that information without responding in ways that put the child in the middle. That means not asking follow-up questions that extend the report. Not expressing opinions about the other household's choices in ways the child will carry back. Not using the information to build a case. Not reassuring the child that your household does things better. All of those responses, however natural they feel, enlist the child as a participant in conflict she did not choose and cannot resolve.
What actually helps is a response that validates the child's experience without editorializing about the other household. "That sounds like it was frustrating" is a different response than "I can't believe they let you do that." The first one lands with the child. The second one asks her to agree with you about her other parent, which is a burden she should not have to carry.
For foster parents managing contact with biological families, this dynamic takes a specific shape. Children may return from visits with information, reactions, or behavior that reflects the visit in ways that are hard to interpret. The same principle applies: receive it, hold it, do not editorialize, and give the child time to settle before engaging with anything substantive. If what she reports raises genuine safety concerns, that is a different conversation, and one that goes through the caseworker rather than through the child.
When Direct Communication with the Other Household Is Necessary
Some co-parenting arrangements allow for relatively functional communication between households. Others do not, and some cannot, particularly in situations involving abuse, protective orders, or significant conflict history. What follows applies to situations where some communication is possible and potentially useful, and it does not suggest that contact is appropriate in every arrangement.
Summer-specific scheduling decisions (travel plans, camps, medical appointments, significant changes to the regular routine) generally require some coordination. The least damaging approach to these communications tends to share several characteristics: it is specific rather than general, it is about logistics rather than values, and it avoids any language that invites a debate about parenting philosophy.
"She has a dental appointment on July 8th and will need to be back with me by 3pm" is a communication that can be managed. "I'm concerned that she's not getting enough structure over there" is an invitation to a fight that will not improve the structure in either household and will almost certainly reach the child. The goal of any communication with a high-conflict co-parent is to exchange the specific information that the child's wellbeing requires and to exit the interaction as quickly as possible.
When written communication makes sense (which it often does in high-conflict situations), shorter is almost always better. Do not explain your reasoning in detail. Do not justify your requests. Do not respond to content that is not directly relevant to the child's immediate needs. Parallel parenting (each household operating largely independently, with communication confined to essential logistics) is a well-documented approach in high-conflict situations, and it is not a failure of co-parenting. For many families, it is the most honest and least harmful structure available.
Taking Care of Your Own Reactions
This is where I want to be honest about something that does not get said enough in co-parenting advice: the emotional labor of watching your child come home dysregulated from an arrangement you did not choose, managing the constraints of a situation you cannot fully control, and keeping your own reactions out of a child's field of vision is genuinely exhausting. The restraint it requires does not come naturally to most people. We have to practice it, and it costs something every time.
I have watched stepparents and foster parents absorb enormous amounts of frustration silently in order to give children the experience of not being caught between adults. That restraint is unusually good parenting. It is a goal that many of us, including me, do not always reach.
Finding a place to process the frustration that is not your child is not optional. A partner, a therapist, a trusted friend who knows the situation, a support group for foster or stepfamilies: wherever you take it, it needs to go somewhere other than the direction of the child. Not because your frustration is unreasonable (it usually is not), but because your child is already managing more complexity than he should have to, and he does not have the capacity to manage your frustration as well.
The research on what children need in high-conflict co-parenting situations points consistently to the quality of the relationship with each individual parent, not to what happens between the parents. A 2019 study on parenting quality and children's mental health in high-conflict divorce found that parenting quality in each household independently predicted children's outcomes. That finding is worth sitting with. You cannot fix the other household. You can be excellent in your own.
What Summer Actually Requires
Summer co-parenting is harder than the school year version because the schedule does less of the work and the adults have to do more of it. That is true whether you are a stepparent managing transitions between your household and your spouse's ex's home, a kinship caregiver navigating contact with a child's biological parent, or a foster parent managing visit schedules with caseworker involvement.
The children moving between these arrangements are doing something genuinely difficult. They are holding multiple relationships, multiple sets of rules, and multiple versions of what home means, simultaneously and often without anyone acknowledging the effort. The best thing any of us can do is make our own household the place where the effort is least and the safety is most. Not by erasing the other household or competing with it, but by being so reliably stable that returning to us is, whatever else it is, a rest.
That is a quieter goal than most co-parenting advice offers. It is also, in my observation, the one that actually works.
