I didn't say smoking was banned in most places. Please understand that. It is reduced, yes, and only certain (read: very few) places have banned it in public.
You might still be accosted by smoke in restaurants, even in nonsmoking areas (where it might be designated as such simply by the waitperson removing the ash tray).
Recent news article talked about locals requesting that there be more nonsmoking areas on the train platforms, so you can see it has not gone away.