In other words if you live anywhere in the country outside of a couple of cities.
What is true is that there are people who live in cities and use Zipcar, Uber, regular rentals, etc. instead of owning. If that's the case, the cost calculus changes if you need to pay in order to run errands.
I'm not sure which "couple of cities" you're thinking of, but I'm pretty sure I haven't lived in either of them. And even when I've owned a car, I've never used a car day-to-day.
I live (barely) inside the city limits of a town of 13,000 people, in a county of 37,000. My wife and I both have vehicles and we use both of them probably 80% of days - and I work remotely to boot.
http://www.governing.com/gov-data/car-ownership-numbers-of-v...