On the bike. Most dead bikers aren't at fault. That's part of the point of the helmet. Where are you drawing the boundary of Amsterdam? It has ~0.1 the popula

On the bike. Most dead bikers aren't at fault. That's part of the point of the helmet. Where are you drawing the boundary of Amsterdam? It has ~0.1 the population of NYC, and 0.5 the bike helment death rate. So, maybe helmets would save lives in Amsterdam (not to mention non-death casualties like paralysis)