You know (to quote Hillary), I never really noticed it before...but, you're right. Years ago, I smoked pot, as did most of my friends. I'm not talking about the hippie/free love days, talking about later-the 70's/80's. We/they were just average people that worked in offices, factories, sales, whatever. But that's true-every pot smoker I've known in the last 15 years has been either A). gay, or B).a prostitute, a thief, someone emotionally distraught,a con artist,or some other type of loser - someone that can't, or won't, function in mainstream society. Strange, but Interesting.
The hippies/Boomers used it as an affectation and just part of their "rebellion". And yes, it really was just a part of the drug scene, which they expanded. Before that time, ALL dope use was for prostitutes, the underclass, losers, and a few artsy fartsy dilettante "artist" types. The exception to this rule, were the poor souls, whom doctors got hooked on things such as heroin, because they didn't know enough about it and it was "new".