There's no fucking way the amount of people on these drugs actually need them. I personally know a dozen people that all they did was call a Dr and say "I'm felling depressed and need something" and walked away with a prescription. No psychological evaluation or anything. Then there's the problem that, in my experience, people don't take them correctly. They have a "good" day and skip a dose or have a "bad" day and double up.
I grew up in the Ritalin generation, my mother refused to have me take it. I have multiple friends with hormonal issues, early balding, and deeper metal problems they all attribute to being on these drugs at a young age.
Any drugs that manipulate brain function on still developing begins should be highly scrutinized, especially where we still don't really understand what's going on in there.
Life's difficult, there's no easy answers or pills to fix it.