At and beyond year 60 (or, conservatively, retirement age), every citizen ought to be legally mandated to pass the written and physical driving tests, all over again, every time they renew their tags. And the test should be given by a recent grad, not some sympathetic and understanding "veteran". My father, a Vietnam vet and, in general, okay man, is a terrible driver 82% of the time. That's being generous. He text messages, answers phone calls (hearing significantly impaired), and, even worse, thinks about other things when driving. He's ten times more dangerous than anyone has ever been while driving drunk, and I know, I've done it SIGNIFICANTLY! Swaying, swerving, missing stop signs, forgetting blinkers, leaving blinkers on for miles, switching lanes in middle of intersection, etc, etc, etc, etc, etc, etc, etc, you get the point, I'd hope. It's part pig-headedness, part self-entitlement (this country's true and only origin) and part self-inflicted ignorance (from age and self-entitlement). We all get/have it. It starts at different points in our lives, but 60 is as a good and safe a mark as any to begin to combat it.