I've experienced that people all across the board and social structures do drugs. Although to be fair, exactly what type of drug are you talking about? "Drugs" in general is a pretty nebulous statement.
Like Pot Smoking. Everyone's brother, sister and grandmother here smokes pot. I swear that my guy and I are the only exceptions to the rule. I used to, but don't anymore. I much prefer having a beer or a glass of wine rather than smoking up. But that is just me.
Crystal Meth is on the rise, as it gives you crazy energy and helps people lose weight. I've known people who have done cocaine, and heroin but I was surprised at both.
From what I've seen in my life, drugs are a personal choice and I don't exactly think that it is from an intelligence POV. My guy's sister can legally smoke weed (she carries a card for medicinal use). Girl is CHRONIC. She smokes more pot than I can shake a stick at. At this point in time she's working on her Masters in Sociology. She is a brilliant, brilliant girl. She smoked pot long before she became able to do it legally (was in an accident, and uses it for pain therapy now).
So in her case, I wouldn't equate it to her intelligence. Then again you can argue that she may be book smart but not street smart.
Personally I think it is too broad a topic to be able to pigeonhole people into a single category. Why do people drink? It might not be illegal, but it certainly is addictive and can ruin people's lives. Does that make me less intelligent? I love my beer, and I love my wine. I'd be highly offended if someone tried to tell me I was of a lower intellect because I choose to use them.
I hope I'm not coming across as harsh, it isn't meant to be. Its just one of those topics that (IMO) aren't easily summed up. Good topic though!
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