I don't have my own vehicle yet. I know how to drive (hopefully acquiring my license in July), but the only wheels I have are my mountain bike. If I need to go somewhere and can't catch a ride with someone else (buses and taxis aren't an option in my town), I'll ride my bike or walk. I suppose it is somewhat of a good thing, on two counts. The first is that automobile accidents are the #1 cause of death for persons between the ages of 16 and 24 years old and because it is much better for you to be riding a bike or walking than it is to be driving, health wise at least, and so I'm not always disappointed that I do not have a car.
It's an awful lot cheaper too.