Some pubs in my "home town" ---I live in British Columbia---have put a ban on smoking in the main bar, and have constructed a "smoking room" which is off-limits to the staff. As far as I can see there has been no decline in their custom; indeed one of the pubs described is by far the busiest in the area. This may be because they serve good grub in the bar area along with the pints. As a result non-smokers ---like me---- have a real choice. Without such places, we would have a choice--of the Hobson type; either come in and breathe filth or do without a pint and a song/blether with your mates.