I know exactly what you mean...
I'm 38 and I don't drive. I can, but I choose not to.

I cycle to work, or I take the metro/bus.
Supermrkets are within walking distance of home.
Longer journeys, I take the train - with free wifi(!) or time to snooze.
I'll hire a car every now and again, if I need to make a specific journey that's awkward by train.

What really stumps people is if you decline their offer of a lift. They imagine that taking the bus is like some form of obscene torture, but it's very useful 'me' time.
(french, Mon 5 May 2008, 2:16, Reply)