Large US cities have plenty of neighborhood markets / corner stores with fresh fruit and vegetables and meat. I live next to 3 of them in West LA, within walking distance. SF has even more. NY has countless. And yes, they are much more preferable and expensive than supermarkets. The markets in California usually have world class wine and produce, since our state grows millions of tons of the stuff.

But yeah, most American suburbs don't have any of that, which is what you're describing.