Why would I want to walk to a train/bus station, wait around, cram into a space full of people (some crazy or smelly or muggers), then walk even more afterwards and probably have to take even more connections, or be forced to use a bike all the time (I use one recreationally but I'd hate to rely on it)? We're not all such smug masochists that we're willing to turn every day into an inconvenient exercise routine and carry the cross of carlessness for ideological reasons.