I take it you didn't bother to read the words commute and job, which implies travel to a workplace to conduct work. While you can combine a commute with a trip to buy groceries, if it happens to be on the way, and drop off/pick up kids at school, if it is on the way and the schedule works out that way, for most that's simply not reality. Note that my post said nothing about giving up one's vehicles, it only mentioned commuting trips for work. Don't add things to comments that aren't there.