I think it's about more than willpower and means, though. It's about education, having an example set for you, having healthy behaviors psychologically reinforc

I think it's about more than willpower and means, though. It's about education, having an example set for you, having healthy behaviors psychologically reinforced, food availability (cf. "food deserts"), awareness of marketing (most people think they're unaffected by marketing, but they're not), ...