Earlier quoted context omitted.
Disagree with the antagonism, though my sample is of course very small. Coming from North Europe, where it's fairly natural to walk distances of a few hundred meters to do an errand, I and colleagues used to walk from a hotel in Rohnert Park to a Wal-mart on the other side of highway 101, whenever visiting the place and needing to do some shopping. And each time there were people driving by who would stop at us and a…
That's a different situation, you will also get questioning looks in Sweden when walking in the urban sprawl of upper middle class, but it's worse in the US. The OSM Surveyors Jacket came about in part because of a necessity, so it's really not only a US thing.
The only area in Scandinavia where I met actual antagonism for walking was a neighbourhood in Århus; I lead a group of 12-year-old football players in a neat dual line through it by foot, and some "youth" started to throw little rocks at the boys. I guess they wanted to signal that it's their territory.