Mass transit works well at Disney World and for getting to baseball games but it runs nowhere near my house or place of employment and I suspect that’s true for most people. Private auto work well daily for most of us.
Individual cars are very difficult for govt to control. And self-driving cars that could be submissive to govt are not progressing very quickly.
Thus the lust for herding us on mass transit.
Private vehicles promote individualism. This is impermissible to collectivist like these guys, especially Bernie.