And because roads wouldn't need to be so big to accomodate so many individual travelers they wouldn't need to cost as much. In fact they could all be underground for all it mattered because there wouldn't be as many interchanges needed.

But what about grocery shopping and stuff? How do you lug all that stuff home? Would that mean buying less at a time? If so would that mean having to go more often? So then a lot more time spent shopping I guess.

I like the idea that everyone would be buying more locally too. But how would people get out of a small town when they wanted? I guess we'd need more regular trains.

Still a lot of things could end up not as needed as we once thought so maybe we would not need to travel around as much on shopping trips.

I'm not sure it would save a lot of commute time because instead of traffic jams there would just be time spent waiting at train stops to catch transfers and stuff, but maybe the trains could just run super fast to make up for it?

I don't know what other bad things might come of it, but it sounds interesting!