The short answer
Children cannot reliably judge how fast a car is moving or how far away it is until around age ten, so under ten they cross holding a grown-up's hand. Until then you are building the habit and the sequence, not handing over the job.
It is not about obedience. Their eyes and ears are not finished
Parents tend to read a dart-out as impulsiveness. It is largely developmental. Judging a vehicle's speed and closing distance is a perceptual skill that is not mature until roughly age ten, and children as young as six and seven measurably struggle to read the direction and speed of moving traffic. They also have a narrower field of view than adults and localize sound less precisely, so a car approaching from the side genuinely is not there yet for them.
Safe Kids and the traffic-safety consensus land in the same place: under ten, an adult crosses with them. Parents surveyed on this tend to think around seven and a half is old enough. It is not.
Make it five steps, in the same order, every time
A fixed sequence survives under pressure in a way "be careful" never does. Stop at the curb, feet behind the edge, not one toe in the street. Look left, right, then left again, and look for moving wheels rather than for cars, because a wheel beginning to turn is the earliest honest signal there is. Listen, including for what you cannot see. Think, and make eye contact: is that driver actually looking at you? Then walk, not run, and keep looking the whole way across.
Say the steps out loud with them at every curb for a year and it stops being a lesson. It becomes what their body does at a curb.
The driveway is more dangerous than the street
The place small children are most often struck is not a crosswalk. It is a driveway or a parking lot, by a vehicle backing up, frequently driven by someone who knows them, because a child standing behind a car is simply invisible from the driver's seat.
So hold hands in every parking lot, every time, and frame it as what capable kids do rather than a rule for babies. Keep the ground behind parked cars off-limits for play. Teach your child to stop and make eye contact with a driver before walking behind any car, including yours. And add one habit for yourself: nobody reverses while a child is unaccounted for.
The same logic applies to the two situations that most often undo a careful child. Getting out of a car on the traffic side, which is worth making a fixed family rule: everyone exits curbside, every time. And crossing between parked cars, where a child is hidden until the moment they step out. Walk to the corner or the crosswalk even when it is inconvenient, because the detour is the lesson.
At the curb, out loud
- "Stop. Feet behind the line."
- "Look left, right, left. Any moving wheels?"
- "Listen. Anything we can hear but can't see?"
- "Is that driver looking at us? Good. Now we walk, and keep looking."
The advice to drop
"He knows to look both ways."
Looking and judging correctly are different skills. A child can look straight at an oncoming car and still conclude there is time, because speed-and-distance judgment is not reliable until around age ten.
Where this guidance comes from
- Safe Kids Worldwide — Pedestrian Safety for Little Kids and Big Kids
- NHTSA — Child Pedestrian Safety Education: Applying Learning and Development Research
- Children's Hospital Los Angeles — Pedestrian Safety Tips
- Journal of Safety Research — Developmental differences in children's adaptation to vehicle distance and speed in street-crossing decision-making
Last reviewed October 2026 by the Enchantably team against the sources above. This is general guidance for parents, not medical, legal, or emergency advice. In an emergency, call your local emergency number.
