When I was in Louisiana for a year I'd walk or cycle to work. Walk was about half an hour and most of the way had no sidewalks. Buying things at a target meant cycling for 40 minutes on a busy road with no bike lane or sidewalk(a street where I later learned a person had turned without watching and cracked a friends skull open).

"Fun" fact: On my way home I was wearing a pink/white Nike hoodie and asked a woman for directions and she said something like "sir, please step away I have a child".

I grew up in Europe, so I get what you're saying and agree with it, but for most of the US, that is actually built for cars, it's not true.