"Why not?" and "who cares?"
Those two questions haunt me when it comes to abstaining. I can answer the first easily enough--booze kills you in a very real sense, but the second is more difficult. I'm divorced and old. My existence consists of work, eating, more work, and sleeping. And cleaning out the cat litter box. Yeah, kitty might care if I drink...but maybe not, because I do it at home and she loves to have me hanging around.