and if they enjoy doing so, why not? Beats watching day time tv a million %.
BTW, just sitting in a bar in LOS doesn't mean one has to get drunk. Can talk to mates met in a bar, eat meals, watch sports on tv, listen to some band failing to sing in English, play games with bar girls, read the newspaper, watch the passing parade on the street, and if very, very lucky, meet the best female you'll ever know in your entire life.
What's not to like?