Comment by Etheryte

This completely misses the forest for the trees and misattributes causality. The Dutch don't wear helmets because the traffic culture and infrastructure are completely different, not because of some questionable statistic no one has heard of. In the Netherlands you feel safe as a cyclist. Drivers look out for you because they're also all cyclists at other times. Cycling is so prevalent that it's hard to explain to anyone who hasn't experienced it.