Maybe this is too reductionist but I once heard someone describe it as, "there's nothing fundamentally dangerous about pot, but one of its (often intended) effects is that is slows our engines down. And some of us need to be firing on all cylinders." School was a tricky time for me. I'm thriving intellectually now, but I was a C- student pretty much 4th-12th grade. I needed those cycles that pot would have robbed me…
One the other hand, people who feel like their engines are firing on all cylinders all the time (ie ADHD and friends) might find some relief in a drug that allows them to slow down and switch of their head radio while firing on only one cylinder...
Be social, happy, energetic, hungry, incapable of succeeding in the education system of the 90s, 00s. (default me)
Be quiet, jittery, never eat, anti-social, depressed at times, but kick ass at school.
Tried a lot of different ADHD medications and generally found success in simply selectively switching that knob when I wanted to be a human or when I wanted to be a learning machine.
I wonder what pot would have done... never really thought about it.