This is similar to the story about planes coming back with holes during WWII. They focused on adding armor on those spots but the number of planes that came bac

This is similar to the story about planes coming back with holes during WWII. They focused on adding armor on those spots but the number of planes that came back home didn't increase. It turns out that the planes with the holes were the ones hit in non vital spots. They should have up-armored everywhere BUT those spots. It's a similar situation here. The helmet prevent death but increase the amount of injuries. Removing the helmets and adding more body armors would be problematic. Edit: Wrote this out of memory but here's a source if you want to read more. https://medium.com/@penguinpress/an-excerpt-from-how-not-to-be-wrong-by-jordan-ellenberg-664e708cfc3d https://medium.com/@penguinpress/an-excerpt-from-how-not-to-...