Why Don’t the Dutch Wear Helmets?

via https://www.youtube.com/watch?v=NpVncWxyMJw

After visiting the Netherlands recently I noticed an interesting phenomenon. It seems the Dutch don’t wear bike helmets. I learned that under 1% of cyclists use helmets. I also learned that overall injuries to cyclists are way less than any place in the world, so what gives? From what I gathered, cyclists and drivers are more experienced and courteous and the roads are engineered to keep all road users. This includes bike infrastructure throughout the country.