But part of the method of becoming lower risk is gaining more experience and building up some NCB's, and if you can't get the ball rolling by paying the astronomical cost of car insurance when young, it's difficult to do.
My brother passed his test and got a car when he was 17, he had to pay something like £1300 insurance a year for a 1.0 metro. I passed when I was 21, and paid £800 for insurance on a 1.4 Rover 25. I don't really understand why I paid so much less considering at both points my brother and I had 0 "real world" experience, obviously my age came into the equation but that doesn't seem completely fair to me, just because someone is a bit older doesn't make them less of a risk with the same amount of driving experience.