I have long thought that the market could decide whether or not there should be smoking in private businesses. If businesses were simply mandated to decide whether they would be all smoking or non smoking and prominently display their choice on their front door and that choice would also appear in all of their advertising and ads for employment, people would decide where to take their business. My bet is that most businesses would choose to be non smoking. There might be a few small establishments like small local bars that would remain smoking, but in time I think even they would make the switch.