> You can't control what other people post about you but for the non-famous this is probably a relatively modest presence I don't think this is right, at least

> You can't control what other people post about you but for the non-famous this is probably a relatively modest presence I don't think this is right, at least not in the context of the parent. Perhaps it's true in regards to _public_ posts on the internet, but I think it's important to consider private photos. If you upload photos to your private Google Photos account, it will ask you "is this FriendA?" and have you train an image classifier for all your friends. Even if FriendA is not online, as long as FriendB is taking photos of FriendA and tagging them (for example, to make it easier for FriendB to search their photo album) then Google knows how to recognize FriendA. I have no idea if this training data is used outside of FriendB's library, but I'd assume so.