The idea
Relax the current law, returning freedom to buisness owners, I won't say too much about this as many other people have sited it.
Also, ensure that all public buildings, such as hospitals and Universities, have a covered smoking area. This removes smokers from the entrances/exists to the building, and also from the streets around it.
Why is it important?
It gives people the freedom to make their own choices, without affecting the lives of non-smokers.