That's the thing, often in the US I felt very boxed into a place, simply because I couldn't just do a Cartman and 'go home' (or someplace else).
Reminder: originally one (Roman) mile was a measure of thousand paces, while a Dutch, Russian and such miles were related to an hour of marching. (later rescaled in feet)
That said, it's not the US vs. everywhere else. For example, the UK has lots of charming little villages where you can walk to the pub and a few stores. Once you get out of the village though, some public footpaths notwithstanding, you're mostly talking very narrow roads with no shoulders, much less sidewalks, and no real way to walk off the road.
This is almost exactly the situation described by Bill Bryson in I'm a Stranger Here Myself. I believe he wanted to visit the shops across the street while his wife was at a mall and there was effectively no way to get there without a car.