Why Do Kids Behave Differently With Each Parent?

One recent morning, I offered my toddler eggs at least three times. I tried all my usual tricks (including a side of chocolate chips)—it was no every time. Then my husband walked in, asked once, and got an immediate yes.

Sometimes there’s a single ask from a parent and the shoes are on. But you make the same request and feel like you need to stand on your head to make it happen. Drop-off is smooth with Mom, harder with Dad. With one parent, your child can be calm, cooperative, and even easygoing. With the other, it can be “no” to everything, tears over all the small things, and reactions that feel much bigger than the moment.

It’s easy to notice the difference, yet not quite so easy to know what to make of it. But these shifts are more common than they seem. Research points to a mix of factors, including the way children form relationships with each caregiver and how comfortable they feel expressing big emotions in different settings.

A child who acts differently depending on the parent they’re with is a very typical part of development.

“Each parent-child relationship in a family is unique, and that doesn’t mean better or worse than the other,” says Emily Edlynn, Ph.D., a clinical psychologist and parent coach. “Within each relationship, children will likely behave somewhat differently because of the characteristics unique to that relationship.”

Children don’t behave the same way in every setting. They adapt based on the relationship and what they expect will happen next. “Children’s behavioral patterns are constantly reinforced by their environment,” Dr. Edlynn explains. “Their emotions also play a role, so how they relate to each adult can shape how they respond.”

That can look like one parent feeling easier to challenge, while another feels more predictable or easier to say yes to. Behavior is generally responsive, not random.

Children are constantly reading the room. They notice patterns, like who gives a quick no, what gets a second chance, and what turns into a longer conversation. And, over time, they adjust.

Most of the time, it’s not just one clear cause, but something that builds over time and also in the day to day. You might notice it happening again and again and start to wonder why certain things play out one way with you and another way with your partner. Here are some of the most commonly researched reasons behind a child acting differently with each parent or caregiver.

Kids form different attachments with each parent

A study of heterosexual couples published in the Journal of Family Psychology found that mothers and fathers often engage with their children in their own ways, with mothers tending to provide more comfort and regulation, and fathers more stimulation and challenge. Of course, every family looks different, and many parents take on both roles depending on the moment. These differences simply reflect each parent’s individual style, and are a normal part of how kids relate to each parent, not a sign that one bond is stronger than the other.

Over time, though, this shows up in everyday behavior. A child might go to one parent to be held when they’re upset, but turn to the other when they want to play or be silly.

Kids feel safe to “let it out” with one parent

In many cases, the parent who sees more meltdowns is also the one a child feels safest with emotionally. “The parent who most actively relates to the child on an emotional level is often the recipient of the child’s emotional and behavioral outbursts,” Edlynn says.

When my 3-year-old decides he doesn’t want to put on socks, I’m usually the one who hears all about it. And I have to remind myself that he’s not trying to make things harder. He’s just comfortable enough with me to let those feelings out and knows I’ll help him through it.

Research on attachment shows that children, especially toddlers, are more likely to express distress with caregivers they trust to help them regulate. One study found that the intensity of a child’s reactions can vary depending on the parent, with some relationships bringing out more visible frustration or emotional release.

In real life, that often means bigger reactions, like lots of tears or resistance, at home with one parent, especially after holding it together in other settings like daycare or school. It’s not always easy to be on the receiving end of this. But it can also be a sign that your child feels safe enough to let those feelings out with you.

The same parenting doesn’t always have the same effect

Research shows that similar parenting behaviors from mothers and fathers can have different effects on children’s emotional development. In other words, the same response like comforting, setting a boundary, or encouraging independence may be received differently depending on who it’s coming from. “Each parent provides different benefits to each child, and that’s okay,” Dr. Edlynn says.

One parent sets a limit and it’s accepted. The other says the same thing and gets ignored. Or one offers reassurance and it settles things quickly, while the other is met with more resistance. It often has less to do with what’s being asked, and more to do with who it’s coming from.

One parent may feel more “novel” or less available

In some families, one parent simply isn’t around as much. That can influence how a child responds.

The parent they see less can get more cooperation and fewer protests. Meanwhile, the parent who handles more of the daily routines—meals, transitions, bedtime—may see more testing and negotiation.

If you’re the parent who spends more of that face-to-face time, it can be surprising to hear bedtime went “fine” when your partner takes over, especially when you usually walk out replaying the back-and-forth.

You don’t need to handle everything the exact same way. But when things start to feel off balance or very challenging in the day to day, a little alignment as parents can help.

• Agree on a few key rules. Not everything. Just the ones that come up every day, like bedtime, meals, or screen time.
• Keep things predictable. Kids tend to respond better when they know what to expect, no matter who’s in charge.
• Avoid “good cop, bad cop” dynamics. Kids pick up on this quickly and will adjust their behavior accordingly.
• Support each other in the moment. Try not to override or undermine each other in front of your child, even if you’d handle a situation differently.
• Communicate with each other.Research shows that when parents are on the same page and communicating well, kids tend to feel more settled and confident.
• Play to each parent’s strengths. One parent may be better at soothing, the other at holding boundaries. Both matter.

If your child seems to act differently with each parent at home, you’re not imagining it.

I’ve started to tune in a bit more to how this plays out in my own family. So, when my 3-year-old refuses eggs, my instinct used to be to keep asking or over-explain why I wanted him to have some. Now, I try to step back. If he says no, I move on, or let his dad offer instead. On weekends, I often leave the egg offering to dad altogether. It feels good to take the pressure off and not make it into a bigger issue than it needs to be.

In most cases, these differences are a normal part of development. There are times to pay closer attention, though. If the differences feel extreme, or if your child shows signs of fear, anxiety, or ongoing distress with one parent, it may be worth taking a closer look.

But in most cases, what you’re seeing is part of normal development. Instead of ruminating over which parent your child might “listen to more,” it may be more helpful to ask what each relationship is teaching them.