Where I live, I could theoretically ride my bike to a bus stop to ride into downtown for work. However there is no bike path, or side walk and the speed limit is 55 with no shoulder. The road also gets a few hundred cars an hour. I've seen people ride bikes around my area, but never down my road, I'm very confident I'll die. So I drive 10 minutes to a bus to ride for 45 minutes instead of drive 35 minutes alone in my car.