I think there is an age range where all this "posting" has been normalized, but outside of that generation it's not appreciated. I'm old enough that this kind of shit is still taboo to me, and I know my young kid and her friends are all deeply aware of who's being photographed, and what to share online and what not to. All the kids seem to deliberately distinguish between photo/video of objects and of people around them, when they go to post things. They're definitely aware and careful. It's this middle age range of maybe 25-45 year olds (?) where a sizable number of people are just careless or even accept casual posting of other people's photos and video.