Earlier quoted context omitted.
That that would also be a generation who had their baby and childhood pictures unwittingly shared and now owned by social media companies. This is something I find really strange and unsettling.
Yes it's so unsettling that their parents privately shared photos and videos of then with family members and friends. They will be horrified of this, I'm sure.
Even if it's just shared with "Friends", most people will Facebook-friend a much wider range of people than who they would consider friends in real life. It's not just the close friends and family members who, a couple decades back, might have got a chance to thumb through the family photo album. It's also often your co-workers, friends-of-friends, and that person you got drunk with in a hotel bar 6 years ago and sporadically chatted up on Facebook Messenger for a few months after that.
Even if nothing practical comes of it, I wouldn't at all blame kids who grew up in the Facebook era for being pissed about it. The harm isn't in what people who are seeing it are doing, the harm is the over-sharing itself.