Graduated licensing, the great leveller. Pretty sure it gets rid of a lot of the posing and ego driven behaviour in the UK...at least that's my experience.
The 3 riders that died in the 507 crash were in their early forties. I was expecting half that age. If licencing graduated by bike type is determined by skill I think these guys would have been able to get unrestricted licences as required elsewhere.
The problem is attitude and thrill seeking. A skilled rider isn't a necessarily a good rider.