My Opinion is you can't really put bad drivers in general under one particular age bracket, Fact of the matter is there are bad drivers in all age groups. The sad fact is, the Media will always hype up crashes involving young drivers in sports cars.
However, in saying that, I know too well the temptation of wanting to put my foot down, wanting to feel the rush.
All the more reason we need an open race track, to let people do it off the road.
I do think making it the law that L and P plate drivers be restricted to 4 cylinder non turbo's would be a good idea though, as young drivers are the ones more likely to give into peer pressure from mates and put there foot down at the wrong time, atleast in a lower powered car they have less chance of getting into as much trouble as quickly as they cant reach high speeds quick enough.