We have to win converts by positive example and in incremental steps. Perhaps if people realized how harmful cold starts and short trips are to their cars and to the environment (cold engine, fuel system, and catalyst --> maximum pollution, fuel consumption, and engine wear), they would complete more of their short errands on foot or bicycle. As rush hour traffic congestion continues to intensify, perhaps we can encourage more workers to commute by bicycle and/or transit.
By the way, although China is famous for its swarms of "Flying Pigeon" riders, there is a strong movement afoot (so to speak) to dedicate more roads to automobiles for the "upwardly mobile" members of the growing middle and upper classes.