i actully wrote a paper on this at school for my speech class. Older drivers are in the same statistic range as teenagers are. Only diffrence is they have had insurance for so long that the company sees it as no accidents for 3 accidents in 50 years even if those accidents are after they hit 65.
I agree completely they should be retested for there liscenses. I see people all the time at my work that can barely walk and ive watched them go outside to there car and the car is double parked or pulled up to far so its on the sidewalk or ran in to the handicap sign or not pulled up enough and is blocking traffic.
If they have trouble moving there feet when they walk. That means they have trouble hitting the brake when they need to stop.