Age is only a category. IMHO, there are really bad drivers of all ages and descriptions. I think the US really needs to tighten its requirements for a license, and everyone, regardless of age, needs to be retested on the street every five years. Every day I come home through a traffic circle, and every day I see someone who stops instead of yielding, stops in the circle, or changes lanes in the circle. Almost everyone doesn't signal properly, and most times the person at fault honks like somebody else is doing something wrong. Age, race, sex, or any other category doesn't seem to separate the bad from the good. Most people and their government representatives seem to like to legislate categories, like teens and seniors, when the real problem is bad drivers that could be fixed by requiring them to learn to be good drivers, and holding them to it. If everyone had to be able to parallel park to get a license, I'd cut 30 minutes off of my 40 minute commute. As for being in the wrong lane, the legally blind are already taken off the road as best they can. I think some old people are stubborn, and probably driving without licenses.