I find it amazing that people are happy to ride with pretty much zero protection at speeds as fast as a small motorcycle would take you, where a proper helmet is mandatory and most sane people would be considering significant safety clothing, etc.

Many years ago (I've been a motorcyclist since I was 16), I saw the result of falling off without safety gear. Even at 30 the results of human-tarmac contact is pretty horrible. Even faster and it doesn't bear thinking about.