Not only for #bikeSharing. #Cycling is attractive for me, because it's as convenient as walking, using the public transport, or driving a car — no extra clothes needed. I just get on my #bike and ride.
If a special #dresscode were required, like wearing a #helmet, I'ld probably stop using my #bicycle. And e.g. buy a #car, so I don't have to follow silly dresscodes.