I guess, mainly, it's that the costs, in effort and in money, of learning to drive (or of being a driver) outweigh the benefits. Most of the things I enjoy doing, I can do from within my own home - either directly, or via the 'Net. When I bought my house, I was careful to make sure that there was a grocery store and a bus stop within walking distance, and that's pretty much all I seem to need. There are, to be sure, inconveniences, but they don't strike me as severe, while the money that I don't spend on gas, and maintenance, and insurance, and the like is money that I can spend on the important things. (Like books...)

Starting about ten years ago, there was a period in which, every summer, I would say to myself that this is the year I'll learn to drive. The fifth time that summer went by without my making any progress in the matter, I decided that if I really wanted to, I would have done it by now. So I quit pretending, even to myself.

What would I drive? I've scarcely even considered the question. Nothing big, but beyond that I have no idea.