The child mental health industrial complex which started in the 2000's and has boomed over the last decade as parents have been bombarded with the message that they need to rush their kids off to a therapist at the slightest sign of normal teenage angst or they are bad parents. Schools have bought into this and participate in the messaging. Once under "treatment" kids are repeatedly told they have anxiety and/or depression which becomes a self-fulfilling prophecy. What would have been normal teenage angst which in most cases resolves itself quickly now becomes a long-term issue of course requiring more therapy. This drives even more kids to think they have anxiety and/or depression because their friends have it.
Lately I have started to see push back among my teenage daughter's friends' parents as they have realized that their kids have actually gotten quite worse since starting therapy. Many have started pulling their kids from therapy and quickly seen their kids mental state improve.