If you live in a city, you can (and probably should) get away with not owning a car. Not only is it unnecessary to get where you want to go, but due to property prices, parking is a gigantic hassle and expense. Walking works well for anything within a mile, biking for anything within about 5, public transit or a cab for the metro area, and car rentals (or borrowing a friend's) can fill in for anything else that absolutely requires your own vehicle.
Not owning a car saves a significant amount of time and money and makes the math better for living in a more built-up area.
If you live in a city, you can (and probably should) get away with not owning a car.
That very much depends on a particular city. And your lifestyle, of course.
If it's worth saying, but not worth its own post (even in Discussion), then it goes here.