Glad you're okay sparty.
I have mixed feelings about elderly drivers - but I tend to think the ones that cause a lot of trouble were probably not good drivers when they were younger.
I have mixed feelings because each of us will become elderly some day (barring an early death). It would become a huge hassle for some (and their families) if they couldn't drive. Not everyone has ready access to public transportation. Plus, sometimes I think we get carried away with wanting to add more rules, regulations, and laws.
I think the answer is that we just have to be extra alert.
BTW I had my high beam on, I always ride with it on during the day, but I guess it didn't help.
On a side note, I don't think it really helps to ride with your bright light on all the time. It really does hurt people's eyes that are on the receiving end. Even during the day. I think the low beam is actually easier to see because it doesn't blind the oncoming driver's eyes.
Again, glad you're okay sparty. These close calls are good to keep us from getting complacent.