&gt; ...and car-lifestyles are what North Americans have culturally designated as the marker of success.<p>This is no longer uniformly true. Some of the hottest, highest-priced residential real estate in the US is explicitly tied to more walkable environs. In the urban cores of cities like Portland, OR, Boulder, CO, and Austin, TX, there are definitely extraordinarily expensive (&quot;marker of success&quot;) residences that are impractical (or at least very time inefficient) to live in unless one eschews a car-centric lifestyle. The developers have noticed, and there is a boom going on right now in those and similar cities by the developers to increase density; however, often neighborhood associations and land-use regulations tend to hold back the density of the proposed developments.