I've always had a problem with cigarette smoke. A little bit is tolerable, but a room full of it will cause an asthma like reaction. First time I went to a bar, I thought I was about to die from all the smoke in there. Guess what, I didn't goto bars after thatFussing about pot smoke at a rock concert is like fussing about noise at a gun range.
That includes restaurants that allow smoking as well.
Now in a lot of cities it's illegal to smoke in bars, but that is bullshit. It should be up to the business owner to decide. I certainly don't have the right to make everyone inside stop smoking just because I want to goto a bar...