So it the car is the problem, what if you could build out new train rails everywhere and get people to use them?

What if people refuse to use the train because it's scary, dirty, stinky, etc.? What if you could re-imagine trains where everyone can bring their own private mini-car and add it to the train? Then the car can be private, clean, luxurious, cheap, or whatever the owner wants. Would people adopt it then?

Yeah. that's pretty zany. As long as I'm not forced to pay for it, why criticize? I'm curious to see which zany idea out there proves itself.