How old is too old to drive?

Older unsafe drivers are a growing problem, thanks to the baby boom generation. In the U.S., 42 million adults 65 and older were licensed to drive in 2016, an increase of 15 million from 20 years ago. Yet who wants to stop driving? It is not only a major symbol of independence but also a needed activity for older people to be able to shop, go to the doctor and maintain social connections…