It's extremely presumptuous of you to assume that everyone who shops at Walmart are uneducated simpletons.

Maybe they're smarter than you with money. The same box of cereal that costs less than $2 at Walmart is almost $6 at Whole Foods.

I meant overweight not dumb. Fat people (like my dad) don't drink a lot of water, they drink soda and sugar water. And every time I grocery shop at Walmart is pretty noticeable demographic of people buying crates of coke.