I have a hunch that you're right, but there are a few other things that coincided with the rise of social media, so it's hard to tell what has driven the change in kids' psyches. Among them is the explosion of pharmaceuticals that are routinely prescribed to kids.
The pharmaceuticals thing is unique to the US, but every country has seen a simultaneous rise in kids mental health issues, so that rules out pharmaceuticals.
I think these things are linked. Either way, kids are having serious issues, so let's roll back the clock and see what innovation causes it. Kids were fine before social media, arguably better.
