“If so, then why don’t the bars just ban it on their own?”
The ONLY bar I ever go to has done so. They’re going strong.
Good for them, that shows the system is working properly.
Back in 2001 and 2002 when we were fighting the smoker ban in Delaware one of the most vocal opponents of it was the owner of a bar that had gone non-smoking, he was rightly concerned that the state was taking away the market niche he had created for himself.
Fabulous.
Now leave me one bar I can go to and smoke.