I don't get it. I'm not in the UK but having read this article on other communities I was very surprised to see so many people support banning smoking.

Yeah it's not healthy but a lot of things aren't. Drinking, fast food, soda, etc etc. Are you gonna go banning all that too? Believe it or not a lot of people are aware of the health effects and made a choice to continue doing so. I think effort would be better spent helping those quit who want to.