At least here in WA if you are under 18 they nail you as hard as any other state. But in seattle specifically they passed a law making marijuana the lowest priority enforceable by law because the federal gov wouldn't let us legalize it.
In amsterdam where you can get marijuana openly they have lower teen use than us in the states.
The way most people work, if they can't have something, they want it. I did, I drank more alcohol before I turned 21, than at any point since, I used to love fireworks when I lived in So Cal, then when I moved to the east coast and had a store by my house I bought them once.
I don't see how any more people would smoke pot then, than do now because it's not hard to get at all if you want it. The only thing more popular than marijuana amongst American teens is prescribed by a doctor, is derived from opiates, and are more available in more households than the illegal plant. Smoking tobacco is legal, people try it and don't like it, others keep doing it, how many people who consider themselves non smokers go to the store seeing cigarettes and say, well they're legal, I'll give em another try.
Some Immigration History you probably don't know:
Operation Wetback - Wikipedia, the free encyclopedia In the 1950's the United States performed "Operation Wetback" where it rounded up and deported 3million mexican nationals.
The operation was modeled after a program that put pressure on American citizens of Mexican ancestry to move to Mexico during the Great Depression because of the bad economic situation in the United States.
Mexican Repatriation - Wikipedia, the free encyclopedia
Ps. I've smoked pot since I was 12 and I had my associates degree when I was 18, what would have been my senior year in high school, and I was a big stoner. Also at 18 I bought and fixed up a couple houses, I actually still have and rent one to an old non pot smoking friend from college, he's been there 7 years now. Pot calms me down so I don't get too animated...I think it's helped me a lot and hasn't hurt me one bit.....I know a lot of people who've tried it and didn't like it, it's not for everyone and I doubt if everyone would do it just because it's legal...