The first points are salient. The last point is interesting, since a car is generally much more required in the US, yes it is easier and more convenient to have a car in the US, as well as a buttload cheaper, but life without a car is (generally) a lot less easy or convenient.
I think it depends on where you live. If you live in New York, LA, Chicago, Seattle a lot of the big cities have such horrible traffic I can see the want to get rid of your car.
If you live in a place like Austin Texas and work from home, like I do. Having a car is a delight. I can go in any direction and bring my stuff I can get stuff from the store and bring it home. I've lived without a car in New York City, there's a lot of downsides to that. You don't have the freedom to just go to IKEA and get a something.
