Science of Cooking

Yeah, I think overall, skill is going up, but I literally don't know any millennial (or younger) couples where both people do not work. I can make a hell of a good meal out of anything, as can almost all of my peers, but the mental load and time required to effectively plan and execute a range of meals throughout the week is just too high for most people who work. Most traditional poor food is just stuff that takes time and/or labor to cook. Braises and barbecues, porridges like grits or oats, soups and stews.

I might grab some of whatever I see on sale at the grocery store, but I'm not planning anything ahead of time unless there's a special occasion meal.

To take advantage of a ham going on sale, you need to plan one meal of ham + sides, and the ham likely takes a few hours to warm up. Another meal after could be baked beans with ham (which require overnight soaking) to be planned ahead, and several hours of baking. Another meal might be pea soup with the ham bone, another meal that takes a while to prepare. Most people just don't have the time for that. When I want to make baked beans, I end up just buying a small chunk of country ham at a greater markup.