Jim Macklin wrote:

an E and F. I've seen a lot of old people (Q-tips) behind
the wheel and they scare me.

now they are also less likely to do something utterly stupid just
to impress their friends or because they think their reflexes
are so much superiors to others... I am more scared, by
a long shot, by teenage drivers (at least they are easy to
recognize from a distance :-), and I believe that statistics
confirms this.

--Sylvain