Smoking and obesity put other people's lives in danger as well, whether it be due to second hand smoke or being a burden on the healthcare system and diverting resources.

There have been countless discussions already about at risk groups and potential spread to them, QALY's, etc. What I want to get at is "social distancing" is arbitrary (6 feet?) and should not be forced. (I am unsure of your statement "Refusing to social distance is illegal...")