5 Common Co-Parenting Arguments and How to Prevent Them  

 Posted on June 15, 2026 in Child Custody

Parenting is hard work, regardless of your marital status. But co-parenting kids with an ex comes with additional challenges. If you are planning to divorce or you are an unmarried parent sharing custody of your kids with an ex, you may already have experienced some of these difficulties. Parents may disagree about parenting time schedules, their child's education or participation in extracurricular activities, healthcare, and much more.

Every co-parenting relationship is bound to experience problems, but there are steps you can take to lessen co-parenting disagreements. At Goostree Law Group, we have decades of legal experience, and we have helped many parents with delicate family law matters. You can trust our Wheaton, IL child custody attorneys to help you through the most difficult parts of an ongoing co-parenting disagreement.

Common Disagreements About Child-Related Issues in 2026

Parents often have strong opinions about what is best for their children. When parents disagree on what is in their child's best interests, the situation can quickly devolve into an argument.

The Parenting Time Schedule

When the child should live with each parent and the overall amount of parenting time each parent enjoys is a common point of contention. One parent may feel the current schedule does not give them enough time with their child. The other may feel the arrangement disrupts the child's routine. 

Disputes over holidays, school breaks, and summers can make an already tense situation worse. These disagreements are among the most emotionally charged that families face.

Childcare

Parents may have different opinions about when third-party childcare providers, such as babysitters or daycares, should be utilized. Cost is another common point of conflict. When parents cannot agree on who watches their child, it can create tension that spills over into other areas of the co-parenting relationship.

Grandparents and Other Family Members 

How much involvement should extended family members have in children's lives? Parents frequently disagree about the role of grandparents, aunts, uncles, and cousins in their children's lives.

Discipline

Some parents believe that children should follow strict rules and face serious consequences for breaking the rules. Others take a more hands-off approach to parenting. This type of inconsistency can be really hard for children to deal with and can also lead to major arguments.

Electronics

How old should kids be when they get their first cell phone? Should children have a screen time limit? A parent who sets firm boundaries around devices may find those rules undermined in the other household.

New Romantic Partners

Divorced parents often want to reenter the dating pool after their marriage ends. Parents may disagree about when it is appropriate to introduce a child to a new boyfriend or girlfriend. Concerns about a new partner's influence, values, or presence in the home can turn into serious disputes. This is one area where emotions run especially high.

A Strong Parenting Plan Can Help You Avoid Disputes

One of the best ways to avoid co-parenting disagreements is to discuss these issues in advance. Parents who build detailed parenting plans can decide issues before the situation becomes contentious. In your parenting plan, make sure to include details about the parenting time schedule and how parents will determine parenting time for vacations, holidays, and other special events. 

Write down information about household rules, discipline techniques, the right of first refusal, and other important parenting matters. There is no way to avoid every single conflict, but many parents find that a robust parenting plan can mitigate the amount of disagreement and drama in the family.

When Do Co-Parenting Disagreements Go to Court in Illinois?

Illinois courts do not want to be involved in every dispute between separated parents. The law expects parents to follow their parenting plan and work through minor conflicts themselves. A court will step in, though, when a disagreement puts the child's well-being at risk or when one parent is not following the terms of an existing order.

Some disputes are serious enough that a judge has to get involved. One parent may be repeatedly denying the other their scheduled parenting time. A parent may relocate without proper notice or approval, which can trigger a court filing. Serious disagreements about medical care or schooling sometimes cannot be resolved without a judge's involvement. If there are concerns that a child is being harmed or placed in danger, that is almost always a matter for the court.

Before filing anything, many parents are required to attempt mediation. Illinois courts often refer co-parenting disputes to mediation as a first step. In mediation, a neutral third party helps parents talk through their differences without a judge making the final call. This is not always possible when there is a history of abuse or serious conflict, but for many families, mediation resolves the issue faster and with less stress than litigation.

When Should You Consider a Modification of a Parenting Plan?

A parenting plan that worked two years ago may no longer fit a child's life today. Parents can move, change jobs, or remarry. Schedules that once made sense can become unworkable. When those changes are significant, a modification may be appropriate.

Under Illinois law, a parent seeking to modify a parenting plan must show that a substantial change in circumstances has occurred since the last order was entered (750 ILCS 5/610.5). That is not a low bar. Courts do not modify parenting arrangements simply because one parent is unhappy with the current setup. The change has to be real and meaningful.

Examples of circumstances that courts have found substantial include a parent's relocation, a significant change in a child's needs, a parent's serious illness, evidence of abuse or neglect, or a dramatic shift in a parent's work schedule that affects the child's daily life. The parent asking for the change carries the burden of proving that a modification serves the child's best interests.

Parenting Plans Need to Adhere to the Child’s Best Interests

Every decision an Illinois court makes about a child's living situation comes back to one question: what is best for this child? The court is not there to reward a parent who followed the rules or punish one who did not. Rather, the judge will be looking out for the child's stability, safety, relationships, and overall welfare.

That standard is relevant in disputes, too. If you are considering bringing a co-parenting disagreement to court, the strength of your case frequently depends on how clearly it connects to your child's needs.

Contact a DuPage County, IL Parental Responsibilities Attorney

If you are dealing with issues and disputes with your co-parent or anticipate problems during divorce, contact Goostree Law Group for help. Call our skilled Wheaton, IL child custody lawyers at 630-584-4800 for a free consultation.