Most experts recommend waiting until your little one hits their first birthday....

https://www.random-bookmarks.win/wait-until-your-baby-is-one-year-old-and-holds-their-head-steady-while-wearing

Most experts recommend waiting until your little one hits their first birthday. Before you ride, confirm your child sits up unassisted and holds their head steady while wearing a helmet. These milestones ensure they handle the bumps safely