I agree with you, there are dozens of us who separate commuting from car ownership, but at the same time I feel (at least in the US) the vast majority of the population don't have that separation.

(For my personal case, I have a car and drive a lot, but rarely for commuting. I usually commute by bicycle+Caltrain, and only use car for commuting when it rains, to drive to my nearest Bart station, as I really don't like to bike in the rain. Lucky for me it rarely rains in the Bay Area.)