Secondhand smoke harming those around them shamed smokers into quitting.  Otherwise, 'my lungs, my rules' was likely the attitude of most.  It's easy to then say 'well, obesity costs us all money in healthcare dollars' and that is true (though anyone who has ever listened to a Dr. Lustig lecture knows there are plenty of unhealthy thin people out there chewing through the healthcare budget too thanks to processed foods).  Regardless, so long as venture vulture capitalists are permitted to make money off the sicknesses of other people it really doesn't matter how much or what any of us eats, our system is and will remain broken (speaking from an American's perspective).  Speaking from the perspective of a formerly morbidly obese person:  Shaming me just made me hide in the house and eat more.  I didn't lose the weight until I realized I wanted a long, healthy, high quality life instead of the short, aching, narrow life I was leading.  Mocking me never did anything except stress me out, and stress eating is one of the most common forms of food abuse out there.