Common? Hard to say. There are plenty at all points on the spectrum. There are hard-core, sloppy drunks who can't do a thing, there are those who are "functional drunks"--they get drunk all the time, but manage to hold a job and family, there are casual drinkers, there are binge drinkers, there are recovering alcoholics, and there are teetotalers. I like to have a beer here and there, and sometimes several, and I hate getting drunk. But, it seems more and more that the people around me are largely either recovering (and I don't want to tempt them) or teetotalers who would be offended if I had one in their presence, so I don't.
Congrats, Paul, on taming your demon for 30 years.