And how does it indicate ability? You wont find stats for either. As the results for either is the same.
Well, driving per se causes the body a lot of stress, so having the ability to cope with stress and maintain a sufficient level of driving ability would seem just as important.
Anyway, your safe, it's only an opinion not likely to become law

I'm just not worried by the fact that some people wouldn't be able to drive. Maybe it would keep a lot more of the bad drivers off the road.
And then there are the elderly....

