Mr Ex-Bike Hero. Note the use of the past tense in previous statement.
I always dislike it when anyone resorts to using extreme solutions to try to derail constructive criticism e.g. "if you hate our dependency on oil, why aren't you walking everywhere, you hippy?" or "why haven't you enlisted yet?"
FWIW, I do drive but I drive as little as possible. I live near where I can walk to the store and I ride the bus back and forth to work every day. For years, I either rode the subway, walked to work, or rode my bike. I didn't really have access to my own vehicle until I was in my thirties. I eschew packaging, etc and am not prone to rampant consumerist tendencies. I live in high density housing.
So, JayB, people are doing things they just aren't doing as many extreme things as you suggest. If more of your small minded brethren got on board, we might have to wait a several decades longer before we all go back to walking.
Do you really need that F350 to haul your little fat ass Bratleigh and Snotleigh to school and to Costco? Do you really need a 5000 sq ft house for 4 people? Despite what you seem to think, people don't always make rational choices (this has been proven time and again, esp wrt financial choices).