Night Driving

I had to drive home the other evening; it was about 50 miles and it was totally dark on an unlit road.  It occurred to me that I hadn't done this in quite some time.  Also that I wasn't completely happy with the circumstances.  I try very hard to resist the aging process, but is this perhaps one of the symptoms?  I virtually never ride the Harley at night - don't need to - and now it seems that I prefer not to drive either.  It's not anything I can put my finger on and it's only outside the local area.  But it is still a little feeling that time is rolling on!  Ah me!