Growing up we had some measure of privacy in public. I realise that's something of an oxymoron, but if you did something dumb only a handful of people might see it and then just go about their day.
Now, with clout chasers looking for content everywhere, one dumb mistake can go viral and haunt you for the rest of your life; and there are any number of strangers with a financial incentive to make that happen.
The poster gets all the attention and follows, and the subject gets to never live it down.
It's an existential threat to your bloodline.
A teen gets filmed screwing up bad enough and goes viral enough, their name is going to get googled by any prospective partner and this'll potentially cost them opportunities to have kids. I don't know that these youngsters are actually broken; it might be a sensible reaction to a broken society.
Lots of misaligned incentives in this world today.
Perhaps, but what is seen as an existential crisis seems to be lowering in severity, and is rarely physical. The emotional self is so fragile today, that it seems that any threat to it is seen existential.