Most kids hit the path by age one. Confirm your child holds their head up...

https://www./parenting/when-can-a-baby-go-in-a-bike-seat-an-age-by-age-guide/

Most kids hit the path by age one. Confirm your child holds their head up strong while wearing a helmet. Pick front mounts for interaction, rear seats for stability, or trailers for naps. Your kid is ready when they sit up firmly on their own.