being a non smoker for many years now, I can see this ban working with no effect on a pub's revenue, at least in the long run.. The smoking customers will just be replaced by non-smoking customers who have been more or less forced to stay home and drink rather that go to a smoky smelly pub. There will be a transitional period of course but everyone will survive and be better off because of it. With more and more people kicking the habit it stands to reason to attract that growing percentage of the market. I was in a restaurant in Memphis, that was in fact 2 restaurants   side by side, one for smokers and one for non-smokers, but the smoking part had non-smoking staff I am sure. Maybe there may have to be an allowance to establish smokers pubs to operate next door or close to a non-smokers pub. What is a concern is the number of young people, especially teenage girls who are taking up the habit. I used to hate playing in a smoky atmosphere once I gave tobacco up, but when I smoked it did not bother me at all.