If you want to be fat, please raise your hand. Those who think being fat is fun or desirable, hands up. Nobody? Really? What you're proposing is to pile add

If you want to be fat, please raise your hand. Those who think being fat is fun or desirable, hands up. Nobody? Really? What you're proposing is to pile additional hardship on people who are likely already unhappy with their current situation, and may also feel powerless to fix that part of their lives. On its face, your proposal lacks both compassion and efficacy. It's also horribly authoritarian, and would likely discourage people from seeking preventative health care, just because the nurses weigh you at your office visit. Think about the potential unintended consequences before firing off a glib, "fix it with market incentives" proposal, paired with reasoning by [car] analogy.