Well, as I tried to post before my cursor got all wonky - I didn't find the people at my local walmart any different than any other place around here, and I'm fairly put off by the photos of one berserker, or another with a low pants line to show how bad Walmart (which I have politically fought against in another life) is. Not what I am seeing. However, I don't get to Whole Foods or TJ's now, due to distance, people with better outfits may sway the cultural assessment of albuquerque. Offhand, walmarters are normal. Will report back, as I haven't tested this a lot.
I did blame store design and perhaps store size, in my way.
As I learned in a humans in the environment or some such class (I forget the title), human behavior is ongoing. Design doesn't cause it. But design can be useful or poor. Walmart has a kind of racetrack thing going.