The thing is we (as an American society) really don’t want a shift to walking. We like the idea of walking more but won’t actually do it. Instead we’ll make up a million excuses about why we just can’t walk. I say this as someone who at 40 years old has never learned to drive and who has walked/bicycled/taken the bus virtually everywhere I’ve needed to go. And I’ve lived in very rural and very suburban areas, as well…
These are people who virtually never walk anywhere unless they have to, but you put them in the right environment and they almost can't help it.