The common argument is that forcing people to wear helmets reduces bicycle use, which contributes to poorer health through reduced activity levels and poorer ai

The common argument is that forcing people to wear helmets reduces bicycle use, which contributes to poorer health through reduced activity levels and poorer air quality, which creates an overall higher health cost than the injuries that would be sustained if helmets were not mandatory. This also ignores the impact having more bicyclists on the road have on driver awareness. I'm all for wearing helmets and encouraging their use, but it's more complicated than "Helmets are safe, they should be mandatory".