Of all the people who smoke never once have I heard the social argument as you describe it. I'm not trying to comment on the subject of the analogy, but just on the fact that I trying to apply the analogy to this space is a bit of a stretch.

I've heard the argument of "I don't care what it does to me", or "I'm gonna die anyway, what gives if I shed a few years at the end", but never "I won't be able to connect to other people if I quit smoking" (in fact, I know people who quit smoking due to social reasons).

I know people who think they look cool when they smoke, or who get thoughtful when they smoke, but I've never heard of tobacco as a "social" activity like drinking alcohol is, for example.