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I actually drink beer quite regularly, and whiskey when I am more in the mood (and in the money). (see: Canadian)
That said I rarely drink when I'm out with coworker, or I'll limit myself to a beer or two. I've never seen a real hard time from anybody, but I'm also a stubborn person when I feel the need to be. I wouldn't dream of giving anybody a hard time about not drinking and certainly would never look down on anybody for not partaking.
I think my only hope is that this view is reciprocated. I've found drinkers can just as often be condescended to for the indulgence -- and unless one really cuts loose and acts like an idiot, I think it's unwarranted and in poor taste... that it can be seen as an act of lower intelligence, or whatever you want.
Personally I really don't care what anybody else consumes and I certainly don't look down on people for not drinking. People have lots of good reasons to abstain from drinking, and zero of those reasons are my business (unless they want to share)