People don't like to be told how to live or act, even if it's right. That's just how it is. If I was walking around on the street or at school and some guy that I considered my peer and not my superior told me "Hey buddy, why don't ya lay off the hamburgers and loose a few pounds? You'll live longer." I would hate that guy intensely even though he's right. It's just a craphead thing to do.

If that behavior would stop, I'm willing to bet a lot of the problem would be gone right there.