You've missed the entire point. But since you mentioned it, there are plenty of people who are fat and are not uncomfortable with it. There are plenty who smoke and see no need and have no intention to quit. And that is for them to decide, not you.
You choose to eat a healthy balanced diet, excercise, and not smoke. Good for you. No one is forcing you to eat greasy burgers or smoke cigarettes. I guess it's too much to hope that this analogy won't be lost on you.
sure light a cigarett in a LA or NY restaurant. Destructive behaviors can and are restricted in various forms.
We teach children not to smoke. We should and do teach children homosexuality is bad.