I don't even understand the need of physically being at the same place, for information workers at least (until remote surgery and hairdressing catch up). Working remotely is good for the environment!

I like cars, but I'd never want to use one for commuting. Random places at indiscriminate times — this is what cars are for indeed.

>> If a large number of people all have to go in the same direction at a similar time, isn't that what public transit is for?

Public transit only works when people live in high density areas. It makes no sense to have a transit stop where very few people live in walking distance of it. People with cars don't really want to drive to the bus stop and then catch a ride downtown, though some do. But most companies are spread out just as much as peoples homes, so business isn't even high enough density to warrant public transit in most cases.

> If a large number of people all have to go in the same direction at a similar time, isn't that what public transit is for?

Yes, and in a sane nation, this would mean that people could live in small cities, take transit to work, then take transit back. But there are many, many places where this is not the case.

I lived on the outskirts of Dallas; it took ages for the rail system to approach usefulness, and individual cities along the route could opt out of having stations (and therefore, opt out of paying for them.)

They're all going to the same place, but all coming from different areas. Arranging for them to get to a common point to even board the public transportation you're offering would require them to take a car, since density makes and sheer time makes it prohibitively expensive. If buses did stop in convenient locations for the widely dispersed people in small towns, it'd take hours before they'd even approach their destination after having spent half the day just picking up people from all over.

The only way to fix the problem is to encourage people to move out of the suburbs and small towns and live in denser regions.