I was car-free for the first 27 years of my life. When I first got a car I gained weight rather quickly because I rode less. I caught on to that quickly and became more car-lite. Now I'm more car-lite than ever. All I have to do is think about how much weight I've lost over the past 10 months from riding (especially uphill), the money I'm saving in maintenance, insurance, and gas, and the fact that I don't have to deal with panhandlers at the gas station as often. That keeps me out of the truck unless I want to haul my road bike up to the foothills or mountains to do some climbing. If I lived in the Bay Area or another area with hills really close, I'd be car-free.