Permission Asking for apps.

Why is permission asking for apps a thing for kids? I get that they could bye something by themselves, but there should definitely be an age limit! I say kids under ten should get the permission asking for games. 12 and above is an ok reason to have permission. And it is annoying for the parents too! If the kids want a game then they have to ask permission and then the parents get a notification! If they ask over and over then it’s just gonna get annoying. If apple see this and reads it I’m going to say that you should fix the age levels before of this! Please change your mind about all ages having this! Thank you, sincerely Jake