I definitely believe it should be banned in restaurants.  In fact I have started into a few and walked back out due to the smoke smell.  We usually go to a restaurant near where we live that is a smoke-free restaurant.  As far as bars I don't have a problem with smoking in there because to me it is a different atmosphere and kids aren't allowed.  Actually drinking isn't good for a person either so if they want to drink they can smoke if they choose.   I am an ex-smoker (I know, we are a pain) and cigarette smoke really smells foul to me now.