Oddly enough, without changing buying habits or consumer demand, I think the Amazon truck is a superior option.
Instead of thousands of individual trips to the store for small things, a single vehicle delivers everything
Instead of many hyper-local stores packed with things that may or may not eventually be sold, only things that have been purchased are shipped and transported
The trick, as you said, is to change consumer behavior and people balk at doing that, especially when it will cost more and income inequality hits harder than ever. Tax the rich, level the playing field, and the rest gets much easier.