It's hard to fault elderly drivers for holding on to their ability to drive. In the United States not having a car is the same as being isolated from your community, ostracized, excluded. That everybody can afford a personal driver, few can.
They're so few transit oriented communities in the United States, it's sad. People need to drive. It's just part of life. As much as we issue the changes of self-driving cars they can't happen fast enough, it'll enable people to have quality of life in these large automobile driven communities.