Wait 20 minutes for a bus. Or take a scooter 20 blocks instead. How do I take the bus from Chinatown to Fisherman’s Wharf? By the time I figured that out, I’d be halfway there. Scooters represent speed and mobility. Buses represent crowds and waiting. Besides scooters are actually fun. A bus is an exercise in patience and time-wasting. If China followed your advice, Shanghai would be a continuous line of buses covering every square inch of road. Those that hate scooters have never used one.