Much has been debated about the how the use of helmets impacts bicycling rates (or doesn't). Now the debate is finding a new battlegrounds among the burgeoning crop of bike-share systems throughout North America.
Vancouver B.C. is an interesting case. The city is lauded as a leader in bicycling (they're even hosting the major international cycling conference Velo-City this week), yet they are saddled by an all-ages, mandatory helmet law. Like Portland, Vancouver is working on their roll-out of a bike-sharing system and many people are watching how the helmet equation plays out. After all, if helmets are mandatory, that means every person who checks out a bike-share bike must have one on.