Yeah, and I work in a hospital located in a low socioeconomic status area, and well over half the people there are grossly obese. What does that tell you?
Indeed. Here in Britain we are facing a problem not far off from America's. I've moved back to East London now, and the number of independent chicken joints that have opened up is staggering, and apparnetly there's a high correlation between these chicken joints, (not other fast food ones, mind you) and poverty.
I digress, the obesity problem seems to be made up of 3 things: culture as strop pointed out, education as gaboloth pointed out and government responsibility, which I think noname was against.
The culture in England is not so aggressively individualistic. However we still have a major hangover from Thatcher. The idea that there is no such thing as community, and only individuals has its drawbacks, and the impact that idea has had on diet is worrying. My brother has a kid that goes to a local school, and one of his friends was round for dinner while I was there. He had never even seen peas or brocolli when they were served to him. Now I'm not for over prescriptive government intervention, but something is seriously wrong here.
My personal preference for solution begins with government. Provide nutritional education at a young age. This will help foster a culture of healthy eating. Which in the long term will go some way to solving the problem.
Something more extreme would be the higher taxation of fatty/salty foods and the subsidy of healthy foods. Often in Britain the cheaper the food, the worse it is for you. Families living on less that 20k a year can't afford to eat healthily, and that is a terrible indictment of society. I recently visited Sweden, where I found microwaved meals and other junk food were the most expensive meals in the supermarkets. It's no wonder they are extremely healthy. I really wouldn't mind seeing the same thing here.
I feel I've strayed too far from the OP though. This whole fining thing seems to be like trying to stop a tank with a slingshot. Fining people $50 isn't going to eradicate the problem, but at the same time, I really wish people would get things into perspective when they go accusing the government of creating draconian penalties, or turning into a fascist state. Government can be very active without being totalitarian. Accusations like that just underpin ignorance of the terms, and distract from the real problems, and any pragmatic solutions to them.