It seems like for alot of bartenders the concept of alcoholism doesn't exist. Back when I went to bars most of them were fine with over serving you. Alot of times they act like they don't hear you when you say you're done and they get you another drink.
I think alot of people like to pretend things like alcoholism and drug abuse don't exist or aren't that serious. It doesn't fit into their fun worldview, it's the same way with mental illness.