My plan is to build up enough personal wealth so that by the time I am 100, I can just pay someone to do the driving for me. These incidents are sad, because I am opposed in principal to the idea of yanking driving privileges away from people just because they hit old age, but I recognize the threat many of them pose to public safety.
I expect that one day society will force seniors to start taking driving tests when they get over 65 in order to renew their licenses, just to make sure they are still of sound mind and body to drive.