This recent case does make a case for cognitive assessment.
Mental alertness, or its lack, is the main cause of driving failure. It leads people to make the kind of errors this lady met. That and poor eyesight.
I think when you renew your licence each three years you should have to submit a copy of a current eye test, taken within three months of the application date.
The eye test requirment could be brought in almost immediately for next to no cost. Cognition tests could be administered in the doctor;' surgery by a nurse.
I had to do them twice last year when I was erroneously diagnosed with a stroke. I got full marks each time. I do not find it a coincidence that having done so well in the cognition tests, twice in the last three months, Tow people I have seperately given a lift to have said how safe they found my driving, they were presumably expecting me not to be safe driver because of my age. I am 80.
My father was driving quite safely in his 90s. He was full mentally alert and an active member of three local groups. He still organised outings for the NT, was the major domo at his local church, organising all the funerals weddings etc, and leafleting and campaigning for the political party he supported.
I do understand people's concerns because i was the victim when an elderly man, clearly not fit to be driving, drove into my car and did serious damage. I was on a roundabout drivng at about 20mph, he was doing about 10mph and I was clearly visible for several hundred yards, yet on his accident report said he did not see me and said I had come onto the roundabout at speed from an access road that I had not been on