Most experts suggest waiting until your baby reaches nine to twelve months....

https://www.bookmarkingvictor.win/wait-until-your-baby-is-9-12-months-old-and-sits-independently-with-strong-neck

Most experts suggest waiting until your baby reaches nine to twelve months. Before you head out, confirm your little one holds their head up steady while wearing a helmet. They also need enough core strength to sit up unsupported