Yesterday I was in a crash on the A14, I was stationary in a line of traffic when someone went into the back of me at high speed writing off my car and his. No one was seriously hurt. The driver of the other vehicle somehow hadn't seen me until he was about 30 metres away despite it being a clear day on a straightish road, for reasons which soon became obvious.
He was born in 1921 and like most 92 year olds he could hardly see past the end of his car.
Had he seen me five metres later I could have been badly injured or killed which brings me to my point- people past a certain age should have to undergo medicals once in a while to make sure they are still physically capable of driving.
A ninety two year old might well have taken his test seventy five years ago- it is senseless for someone to be assumed to be competent in handling a powerful piece of machinery on the basis that they could control a much less powerful machine some time before World War 2.