True but there is clear research evidence that the more socially acceptable and promoted something is the more people will do it. I think most people would agree that the fewer people gambling the better, the fewer people starting gambling the fewer problem gamblers, the less socially in your face gambling opportunities are the less normal it becomes. Smoking prevelance has shown all these things to be true.
When I grew up you could only bet in a betting shop, the windows had to be blocked out and there was no advertising. It seemed seedy and not something a decent person would do. I am sure that has had a lot to do with the fact I've placed about 5 bets in my life when I went to the track with some mates once. (That and I'm a Yorkshireman and hate giving my money away!)