That's true as well. Also heaps of self diagnosis that you'll see amongst that age range, with GPs all too happy to prescribe medication when depression or anxiety may be purely circumstantial (i.e. a bad breakup, a rough time at school, loss of family member etc).It's hard to deny social media's effect on younger people but levels of mental illness among teens is slightly deceptive in that it's only quite recently that people have really recognised it as an issue among young people so we don't really have much data about adolescent mental health prior to the era of the internet to compare it to.
Without looking at any qualitative or quantitative data, I'm sure teenage anorexia has gone way up. The unfortunate need to compare to your peers on what is essentially a highlight reel (Instagram) that doesn't go close to showing any of the lowlights, gives people a false image of what they should be doing.
That's not to mention the dangers of cyberbullying, which was certainly prevalent when I was in school especially because social media was still in its relative infancy, and thus hard to regulate at all. And that's before I even touch on Snapchat, which was probably the worst app to give a bunch of teenagers and let them run wild with.
I'm definitely welcoming any change to the current system.