Which is why I drink and smoke.
I'm naturally introverted. I dislike going out, and in fact almost NEED alcohol in very social situations because I feel uncomfortable without it. I don't like meeting new people. Makes me extremely anxious.
There is a huge difference between getting blasted and having 2-3 beers over the course of an entire evening. When I get totally blasted it's much more fun to be around people and be social. If i'm alone though a couple drinks doesn't make me want to call people up or go out.
I think it's just a matter of your state of mind after imbibing. I know a hundred people that can't fathom toking or why anyone would want to toke under any circumstances. To each his own.