I created a family child account years ago. I want to give my child their own first.last icloud account but I cant because the family account is seen as a child and cant be removed until they're 13. Help!

Hello rich.fore,

We see you have some questions regarding a child Apple ID account, and we can help out.

It is correct that a child account cannot be just removed from a Family Sharing group, but there is the option to move them to a different Family Sharing group, or delete the account. Information on that here: Move a child to another group using Family Sharing

General info on changing an Apple ID can be located here: Change your Apple ID

Cheers.