My mom, who is 87 years old is, of course, slowing way down. She is has a car and is still driving about once a week, but I don't think she should be. Her reactions are very slow, and she shuffles when she walks. Has most likely had a few small strokes. How can I stop her driving? She lives with her sister, who is happy to take her anywhere she needs to go.
Seeing she would not give in, we removed the vehicle. We did not give it back. Several months later she agreed to sell the car.
But age shouldn't be an issue, as long as they are still safe drivers. Accidents can happen at any age.
Anyone brave enough to tell Clint Eastwood or Sean Connery they are too old to drive ;)
It is good that her sister can drive her anywhere. You wouldn't want to be the only *driver* as that can become very time consuming.