<< What does that have to do with anything? >>
You referred to McDonalds. And I said that I don`t go there. Which part don`t you understand?
<< Do you think because someone does something unhealthy that they should not be allowed to do it
where they want? >>
Of course, me eating "McDonalds" in your example, doesn`t effect anyones health but mine. However, if I am smoking, second hand smoke comes into play, which effects everyones health that is in that vacinity.
<< Especially if it is legal. >>
Legal? Well, it's illegal for people under 19 to smoke here in Canada (not sure about the States, but I am sure it is similar). It doesn`t matter what age you are, in order to eat McDonalds. Additionally, it is not illegal to eat McDonalds in various areas, yet smoking cigs is illegal in certain areas, as you have encountered at work.