I have a couple of elderly friends in their eighties. The wife is trying to get the husband to give up driving because she no longer feels safe in the car when he's driving. His reactions are slow, he has had a few prangs and has brought the car home with bumps and dents which were always 'some other idiot's fault'. He is very reluctant to stop driving and yet I feel that if he took a driving test he would fail. There should be some test of competency over the age of eighty, at the maximum.