I think America has a much bigger presence of RCs on the street. As in your much more likely to encounter 2Cs etc and random stims being easy to obtain from a standard dealer. I can't confirm it as obviously I don't live there but one good example is Methylone, it's extremely popular over there and unheard of on the streets here really (so much so that people would think you were saying methadone or similar). I just put that down to the availability of the more classic/illegal drugs. Pharmaceuticals are obviously popular as they dominate the market when it comes to even the legal side of money, they also seem to get scripted a lot more but that could just be down to the population, so it's likely a lot of those will escape onto the black market. As for Methylone, MDMA doesn't appear to be as widespread over there and when it does it's shitty pills like Pokeballs. Over there it seems to be a risk of getting meth in your pills? (Anyone able to confirm?) which is pretty much unheard of here nowadays, so it's any wonder you'd switch to Methylone when you can get it much more pure. Baring in mind a lot of the pills that are mentioned on EADD are sourced from the Netherlands it's a whole different story getting pills into the US, from Europe I would assume.
As for the school/uni thing, that's the age a lot of people get into drugs. At least they are starting to learn the right information via Bluelight at that age rather than when they are 30. No harm in that.
