You could question the socially redeemable merits of almost any popular activity that people take part in (and people try, with the Canucks, Lions, sports stadiums in general). I could make the same argument about bars, nightclubs, pubs, etc., because they're really not my cup of tea. In truth, it's neither yours, or the governments (despite their best efforts) responsibility, to decide what's best for other people. There are plenty of people (the majority) who call it a night out and are responsible. It's not my idea of fun, but I'm not high and mighty enough to try and people what they should be doing with their own time and money
There are more destructive behaviours, though granted, gambling, drugs, etc. seem to go hand in hand.
But so do douchey people with spiked hair and Ed Hardy clothing but we can't outlaw that, either.