See that’s where you are completely wrong, COVID did not effect everyone’s mental health at all, that is all media scare mongering.
To answer the question as someone who actually works in children’s mental health, the increase is due in part to, in no particular order, social media, poor parenting, parenting responses too COVID and lockdown and the instant gratification society that exists now.
While children and young people have always experienced MH difficulties the response in society now is inappropriate.
Just how many time have you heard people say “I’ve got anxiety” ? Well of course you have it’s a perfectly normal emotion.
Its like saying, I’ve got the sadness. Joe Public have become MH experts liking to diagnose and medicalise every possible normal reaction.
Online bullying is huge and relentless, just how many parents on here monitor their children’s phones on a regular basis, who are they chatting to and what is being said.
Young people do not have the brain development to make their own decisions in many case but so many parents have such strong opinions about their right to privacy and therefore have no idea what’s going on.
Ive said this many times in here, what specialist MH services consider significant issues and what parents/ Joe Public consider are generally very different. So it’s not always the case that derives are struggling it’s more the case that the distribution for the mild to moderate are more sparse depending on where you live.