I'm not a kid anymore.My girlfriend,10 years younger than me (yah,I know...robbing the cradle) always makes fun of the fact that I'm always the guy in the right lane of I-90...or 95...or 684...with the cruise control set at 66MPH. Even at my age...no longer 50 and not yet 80...I can feel my abilities slipping just a bit,particularly my confidence. I can easily see myself in a few years being on I-90 with the cruise control set at 60 (or slower).
I stick by my opinion: mandatory medical certification required at "X"...and no licenses issued after "Y".