Yes, they are. I got my drivers license and first car when I was 22. Length of driving history was not a question when I got insurance, and I got charged the same as 22-year-old males who had been driving since they were 16.
True, but I do think experience has a lot to do with the equation there. Pretty much all insurances are based on the chance of payout but I don't know if that should apply to the prices of things like physical goods or in this case air travel.
It's dangerously close to an argument such as "People of color have to pay more or can't use this service at all" or "Blonde hair blue eyes" you know?
Car insurers charge young people more money, despite their youth being outside of their control.