My suburban neighborhood growing up did not have sidewalks; not sure if that was unusual. Overall it's my impression that urban areas are much more walkable/bik

My suburban neighborhood growing up did not have sidewalks; not sure if that was unusual. Overall it's my impression that urban areas are much more walkable/bikeable than suburban ones. At the very least, it's difficult to leave or enter individual subdivisions in the suburbs on foot (by design).