It would be very nice if people who never use their health insurance and/or only for broken bones, etc. would get deep discounts.
Education is key.
So many people have no clue that their daily life choices (the biggest one being eating), actually affects their health. And then, of course, there are many people who
are concerned about their health but then misguidingly (Is that a word?!) follow Atkins, Paleo, the American Heart Association guidelines, etc. thinking they are doing good.
I really think if people could be led by the hand, so to speak, and actually taste just how good the foods with this WOE can taste, and they gave it a solid month for their tastebuds and health problems to improve, people would really change their minds. I guess we all have to help in our own spheres of influence and to always remember to have patience and grace, not to be condemning.
As for the cashier, he maybe has tried to eat "healthy" in the past, but after eating carrots and celery (not very tasty to one used to grease and salt and also not filling) he (or others like him) gives up and loses hope of ever getting healthier by eating heathy. Fear probably also plays a part...believing "I can't do this!". And when it comes to men, many identify their manhood by eating meat.
But, I can definitely feel your frustration about people's negative attitudes when you try to help them. We just have to try to put ourselves in their shoes by trying to think about why they react as they do, and hope that we can plant a seed. Then maybe someone else will come along in their life and hopefully water that seed...and then hopefully one day it will take root and grow.
I know, I know...not the "answers" you were looking for or the pace with which you'd like to see them instilled...me, either.