Wait for your child to sit up independently and support their head in a helmet...

https://www.phone-bookmarks.win/wait-until-your-child-has-strong-neck-control-and-sits-independently-usually-1

Wait for your child to sit up independently and support their head in a helmet before riding. Use a trailer for infants. Front seats offer great views, while rear seats provide extra stability. Always prioritize comfort and a properly fitted helmet.