This is true in certain American suburbs, but definitely not all. Older and less affluent suburbs, in particular, often have abysmal walking infrastructure.

I'm not sure this fits the prototypical suburb -- but I have spent a lot of time in southern Texas, and look at this amazing pedestrian infrastructure: https://www.google.com/maps/@26.1413614,-97.9581625,3a,75y,3...

They recently (past ~5 years) installed new ADA-compliant pedestrian crossings from which you can walk...nowhere. But you can circle the 4 corners of the intersection all day!

(Incidentally, the restaurant on the SW corner of the intersection is amazing!)