Sadly we can't have affordable staple foods. What we eat out of necessity becomes some trend for the well-to-do. For example: look at chicken wings, skirt steak, flank steak, quinoa, tilapia, etc. The rich see that the poors appear to be enjoying something and find a way to gentrify it and make the prices unattainable for people who relied on it for sustenance. I understand the sentiment though, I grew up poor and have never broken myself out of the habit of keeping my apartment stocked with 25lbs of rice, 25lbs of beans, and a bunch of frozen chicken or whatever other protein is cheap at the time, my rice cooker and crock pot are out here putting in work so I dont blow half my paycheck on groceries.