alt Hacker NewsI don't think anyone is under the delusion that cigarettes are healthy for you. Everyone knows they cause multiple cancers. That's part of the appeal. It shows how 'tough' and 'cool' the user is. No matter what you do, there will always be a reactionary group of people doing the opposite of what they are told.
This is discussed many times. How to stop smoking in youngsters by XYZ.
But never: just force them to transparently list the junk they --currently secretly-- put in.