I'm more thinking about the whole thing Americans talk about with 'food deserts' - e.g. are there people surviving on fast food that are really too far away fro

I'm more thinking about the whole thing Americans talk about with 'food deserts' - e.g. are there people surviving on fast food that are really too far away from a real grocery shop to buy supplies - you can't build shops overnight. How many people don't have a stove i.e. they're effectively homeless if not literally on the street? Stuff like that. I have no idea. It'd definitely be alright in the UK but the way I see Americans go on about this stuff on here makes it seem as if McDonalds is critical infra.