They actually found that both cyclists and drivers tend to take more risks when helmets are abundant, which in turn leads to more serious accidents instead of fewer.
Moreover the Netherlands don’t have comparatively more head injuries each year than more car-centric countries, suggesting that cycling doesn’t contribute that much overall.
And most injuries tend to happen to old people. Drop the 60+ bracket and suddenly head injuries from cycling drops to an inconsequential number.
They actually found that both cyclists and drivers tend to take more risks when helmets are abundant, which in turn leads to more serious accidents instead of fewer.
Moreover the Netherlands don’t have comparatively more head injuries each year than more car-centric countries, suggesting that cycling doesn’t contribute that much overall.
And most injuries tend to happen to old people. Drop the 60+ bracket and suddenly head injuries from cycling drops to an inconsequential number.