FWIW you can have all of these on the coasts as well. For example, if you can afford a suburban Boston house, you can find any number of small towns in New Engl

FWIW you can have all of these on the coasts as well. For example, if you can afford a suburban Boston house, you can find any number of small towns in New England where you can afford to live and have a small walkable community (that is to say, in absolute terms these communities are expensive but in relative terms for New England they are not). The problem this is missing is that "walkable" doesn't actually include everything you need to live. Jobs are the most obvious one, for those who don't have remote work or their own business, which is to say for most Americans. You'll also probably end up driving when you need to do serious shopping because your town center's general store isn't a Wal-Mart. Similarly for any number of specialized purchases or services. In any case, small-town living and city living are very different. What's impressive about Japan is bringing a walkable, livable urban form to a mega city of 30 million people. When American towns start growing into cities (or when they are informally annexed into a larger cities' urban region) they usually do so by converting farmland into car-accessible suburbs, which is the problem.