"I cycle in San Francisco and wearing a helmet has saved my life twice. Definitely the first time when I flipped over my bike head and slammed my head on the ground so hard I dented and cracked my Giro helmet. I think the best solution is to have vending machines that sell these sweet foldable helmets at each of the bike share stations so people still have convenience and safety - that's what these were designed for. https://www.ecohelmet.com/"