Wait until your baby hits nine to twelve months before riding. Your child needs...

https://griffinphut760.theglensecret.com/can-i-tow-a-toddler-bike-while-also-carrying-a-baby-the-ultimate-guide-to-family-cycling-logistics

Wait until your baby hits nine to twelve months before riding. Your child needs strong neck muscles and must sit up independently while wearing a helmet. For younger riders, a trailer offers the most stability and protection