> For a real life example, I knew someone who was going through some pretty serious depression in high school. Responding to which their counselor said something along the lines of "you shouldn't be sad, this is the best time of your life". Which was pretty devastating thing to say to someone.

And, for a lot of people, it's just not true. Maybe I'm really fortunate, but I can't remember a better time in my past life. I think for a lot of people, things generally get better as you age. You definitely get more autonomy, compared to when you were a child and teenager. Financially, you get established in your career, you save a little money, maybe you can even afford a home. Socially, you have better, closer friends as you get older. You can worry less and less about what other people think of you as you get older. I guess this is a little privilege showing, but generally I think my mental wellbeing is much better now than when I was a child or teenager.

High School was the absolute worst point in my life, and that's true for a lot of people I know. You lack autonomy, you're bored, you have no money, you're in a prison-like institution getting bullied for most of your weekday. You're under a lot of pressure and have to worry about grades and behaving the way adults want you to behave. It sucked! Who are these insane people where high school was the best time of their life?