I think it's a stupid idea. If anything, we need to be more robust in taking old people who can't drive properly off the road, not trying to enable them to continue driving by letting them off going through red lights because they can't see them. The report seems to think that old people driving badly is something they choose to do and they can remedy it, but you can't remedy weakness in legs and arms, the decline in eyesight and the general slowing of cognitive ability to make quick time decisions. I see it in my own parents - my dad doesn't have any weakness or eyesight issues and he's 75, but for the last 5 years or so I have been able to clearly see the general slowing of his decision making when driving and just random things that only old people seem to do, like just randomly slowing down whilst driving for no reason, and braking for everything.
Unfortunately, I can hand on heart say, a good 60% of the serious or fatal RTC's I go to involve an old person (70+) running someone over/crashing into buildings because they've got the brake and accelerator mixed up (?!), pulling out on other vehicles and causing absolute carnage, or having a medical episode behind the wheel. They nearly always either can barely walk, are chronically confused or blind as a bat - but they still refuse to give up their driving licences.
The number of over 70s that drive the wrong way down slips roads and motorways/dual carriageways is nuts as well. We've had two in the last 3 days.
We also get a significant number of members of public calling up to report a suspected drink driver only to find out 8/10 times it's someone over the age of 70 who was oblivious to the fact that they were weaving all over the road and mounting curbs. I've also lost count of the amount of times we've responded to these jobs and that we've had to physically pull in front of them to get them to slow to a stop, because we've had blue lights and sirens on behind that for several miles without them even reacting.
Honestly, old drivers are IMO, the biggest hazard on the road and it's only going to get worse.