Seawytch
Information isnt Advocacy
The total number of people who live in single story houses can't imagine why anyone would need a staircase....they never take the stairs.
The country was built around cars and highways the same way a house was built; be it a single or multiple story structure. Think of my condo tower as the subway--I take stairs quite often because I must if I want to get to the other floors more rapidly.
Would bullet trains be successful in the US? Likely not. I agree with you but not because it's a bad idea in and of itself. Its a bad idea because we're conditioned along different transitory DNA. It would be like trying to sell coats at the beach or ice to an Eskimo.
We CAN evolve...