That's why you have to build and live more densely. The US absolutely refuses to do that, outside of Manhattan and a few select other places. It won't be a pl

That's why you have to build and live more densely. The US absolutely refuses to do that, outside of Manhattan and a few select other places. It won't be a place where local trains make any economic sense until this changes. However, for your "door to door" point, that's not desirable anyway. Even here in Tokyo, you have to walk a lot to get between your home and work or wherever you're going. That's a big, big part of why people here are so much thinner than Americans. Having transport that takes you door-to-door without any significant walking is terrible for your health.