Who do helmets protect: 1. the person wearing it 1. the insurance companies
Who do they have absolutely not effect on: 1. the other 7,000,000,000 people on the planet, including you
Then the question is, who pays the increased Insurance rates because of a track injury?: 1. The poor choice helmeted injured driver? 2. The 7 + billion? 3. Or the other track racers?
Reality check, that half the population is smarter then 50% of the people and it's a constantly contested fact.