Getting old presents many challenges. Hardest of all is the threat of losing your independence. And for most people in Britain, that means one thing - their car.
But what happens when you worry you are too old to drive? How do you know it's time to stop? And how does a family deal with the problem if granny or granddad refuse to hang up their keys?
45 minute documentary - Tuesday 2 November, 22:35 on BBC One