A few years ago a long time bar/restaurant near my house switched owners and re-opened as a smoke free bar. They managed to stay in business for about a year. I do not smoke but always had the common sense to know when I went to a bar it would be there. I still think it should have been up to the bar owners. I can see a ban in food establishments but at least in my area I have seen a huge decline in the amount of people going into bars.
Avoiding second hand smoke is something that if a person is worried about at least they can see it. I can't wait until the gov. decides that anyone stupid enough to drive a car more than 2 yrs. old will have to get rid of it because of the excess pollution it causes. I mean come on, you are not going to a bar to get any healthier.