Many will be able to drive safely well into their 80s.
So far, he has gotten operations on his hips, hands, shoulders, and back after overexerting himself while gardening, moving furniture, and... walking. When I ask him to consider the risks of driving, he brushes me off like I'm being ridiculous. It infuriates me. There's no arguing with him. And I'm absolutely gonna get a phone call one day that I'm not gonna like.