Usually, they photograph themselves (boys and girls), believing they’re doing it for something like a boy/girlfriend. Silly and misguided but sadly understandable.
Whoever asked for it, once they have the photo, it’s frequently shared. And/or put online.
Yes, totally crazy.
This is no secret, so why are these young people letiing themselves be placed i such a dangerous situation?
It is totally beyond me, and Keir Starmer wants to give 16 year olds the vote.
He is as mad as the young folk.
Lack of common sense or intelligence, up for a gaffe till it backfires then cry wolf.
Finally !! What I have been saying all along.
Maybe we come from different sides of the tracks 
It’s interesting, particularly as an ‘old person’ to see how kids are simultaneously technically sophisticated with online media and yet socially naive as to how it can be abused.