Twenty-two states currently require frequent testing for senior drivers. The American Medical Association and the AARP, however, say safe driving has more to do with functional ability than age. True, seniors are more at risk for reduced vision, hearing loss and impairments associated with arthritis — but all of these conditions depend on the individual. So when it seems to you that Pop is becoming a danger to himself and a danger to others, tell him straight. Point out that his reactions have slowed or his judgment is losing its edge. Suggest he not drive anymore. Be firm, but at the same time, don’t treat him like a child. Allow him his dignity. Offer him a ride.