Do Early Childhood Milestones Predict What Your Child Will Be Like Later?
I was hauling old boxes out of the basement last weekend to clear space for my 12-year-old’s new bike, and tripped over a dusty cardboard bin full of baby stuff. On top was my oldest daughter’s well-worn baby book, its cover stained with old coffee from a forgotten 2 a.m. feeding, its pages stuffed with old footprint art and pediatrician checkup sheets.
I flipped through it out of boredom, stopping at the 12-month milestone checklist. The doctor had circled Lila’s scores: walked unassisted at 11 months, said 10+ words, pointed to named body parts, all in the “advanced” column. In the margin, my mom had scribbled in blue pen: “Dr. says she’s 6 months ahead verbally! Future lawyer, for sure.”
Then I pulled out my son Jake’s baby book from the same box. Turning to his 24-month checkup, my own messy writing stared back: “Only 8 clear words. Pediatrician referred for speech eval. Very worried.” I remembered that week so clearly. I’d gone to a playgroup and a mom I barely knew asked when Jake would start talking, like I was doing something wrong. I’d spent an hour that night scrolling through parenting forums at 10 p.m., convinced he’d never catch up, that his slow start meant he’d struggle in school, struggle to make friends, struggle his whole life.
Last week, I watched both of them eat dinner at our kitchen table, and I couldn’t stop thinking about those notes. Lila’s 16 now, and she’s applying for a summer botanical illustration camp. She spent three straight hours on Saturday sitting on our back porch drawing ferns, didn’t answer when I called her for dinner three times. She’d rather text her one close friend than go to a high school football game, and she still takes 30 seconds to answer any question I ask her, like she’s turning it over in her head before she says a word. The kid who was talking in full sentences at 18 months would almost always rather be quiet.
Jake, the 2-year-old who couldn’t string two words together, came home from middle school that same night and spent 20 minutes walking me through every single detail of the lunchroom argument over the last slice of pepperoni pizza. Then he spent 45 minutes negotiating for a hamster, pulling up a spreadsheet he’d made on his iPad that outlined how he’d pay for bedding and food, how he’d clean the cage every week, how getting a hamster would teach him responsibility for high school. He organizes all the neighborhood pick-up basketball games, mediates fights between his friends, and can talk his way into an extra 15 minutes of screen time almost every single night.
I know that every parent has had that moment of panic when their kid hits a milestone a little late, or that little rush of pride when they hit it early, and it’s hard not to project that into the future. I did it. I think we all do, because the checklists are right there, staring at you from every pediatrician’s office and every parenting app, and they make it look like there’s a straight line from that first step at 10 months to who your kid is at 16. There isn’t.
What I’ve learned the hard way is that milestones are just a general guide for what most kids do around a certain age. They don’t tell you what your kid’s brain is busy working on right now. Jake spent his first two years figuring out how to climb out of his crib, open the baby gate, and stack 20 blocks into a tower higher than his hand. His brain was prioritizing spatial reasoning and motor skills, not talking, and that’s okay. That same skill is what lets him build a skate ramp in the backyard and plan a whole camping trip with his friends now.
I get asked all the time by new parents what I think about milestone timelines, and I tell them three specific things that I wish someone had told me back when I was panicking about Jake. First, if your pediatrician suggests an evaluation for a late milestone, do it. We did six months of at-home speech therapy with Jake, and even though he outgrew his delay really quickly, it gave me small, simple tricks to help him practice sounds during play, and it took the weight off of worrying if I was doing something wrong. Early support never hurts, even if it turns out to be just a late bloom.
Second, don’t ask other parents about their kid’s milestones, and don’t feel obligated to share yours if you don’t want to. I can’t tell you how much unnecessary stress I got from well-meaning relatives and playgroup moms commenting on Jake’s speech. It’s okay to just change the subject when someone brings it up, instead of spiraling into worry for a week after.
Third, write down the small stuff that doesn’t make it on the checklist. The 1-year-old who can sit and stack blocks for 20 minutes, that’s a skill. The 2-year-old who can point out every dog on the street, that’s a skill. Those things matter as much as walking or talking, and they’re just as good a clue to what your kid loves, even if they don’t show up on a pediatrician’s form.
I tucked both baby books back into the box and carried it back to the corner of the basement, after I got Jake’s bike moved in. Right now, I still don’t know what Lila and Jake will end up doing. Lila might still become an illustrator, or she might change her mind next year. Jake might actually get that hamster, and he might become that sports agent he talks about, or he might not. That old margin note about the future lawyer is just a funny joke now, not a prediction. The line on the milestone checklist never tells the whole story, and most days, that’s the thing I try to remember when I catch myself worrying about what comes next.
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