There are these crazy things called “parental controls”. You’ve probably never heard of them, but they’re on nearly every single personal computing device. OR, and hear me out. You could just buy a dumb phone for your kids until they’re sixteen, and if they want to take pictures, buy them an inexpensive digital camera. It would be cheaper overall than buying them an iPhone. But no, that’s probably too difficult for you, so everyone else has to give even more of their personal information if they want to use Facebook Marketplace or whatever.