I’ve been driving for 50 years. Does all that behind-the-wheel experience make me a better driver today than I was when I first took to the road? Or does my driving longevity make me a worse driver because my physical and perceptual abilities have inevitably eroded over time? The answer to both questions is “maybe.” To be sure, I am a more cautious and courteous driver today than I was as a teenager, and I am less likely to flout the rules of the road. Equally as certain is that I don’t hear or see as well or react as …