You're in the wrong. You're a reckless young man who huirt an innocent old woman. The fact thait was your right of way and the frail old dear lost control of the vehicle is irrelevant.

I agree, once you get to 50 you should have to have a medical, and at 70 I say you need to do a re-test and then every 6 or so years after that. I say that because these days you get marked down on your test for driving too slow, so these old drivers would be buggered when they sit at 30 on a 60.