TBH, GP's neighborhood isn't universal in the US.

I grew up in suburban Dallas, and there were sidewalks everywhere. The only neighborhoods I saw without sidewalks were older neighborhoods that always creeped me out when I was little... I always got the impression that they were dilapidated.

Here's an example from a neighborhood right near where I grew up: https://goo.gl/maps/qGSvbk4HdAM2

And even the six-lane arterials have sidewalks here: https://goo.gl/maps/DUR8mdVQysu and https://goo.gl/maps/hZ4dL3yj8F32

And for completeness, a sidewalk-less street in a nearby neighborhood: https://goo.gl/maps/TnQ8bogKttL2 -- that whole area just looks old, and the neighborhood gave me the creeps when I was a kid