If a biker has never driven a car (e.g., biker is only 14 years old), then the biker does not fully understand the perspective of a driver. When I was 14, I biked everywhere I could. I thought drivers were naturally looking out for bikers. I didn't realize until I started driving, that's not the case at all!

Likewise, if a driver has never driven a motorcycle, then the driver is unlikely to be looking for motorcyclists. That brings up another point. Motorcyclists think a really loud motorcycle is a safety feature. Are you kidding me? Most times, I don't hear a loud motorcycle until it is beside me. An accident would have occurred before that. I'm sure the motorcycle is loud to the rider and pedestrians, but not to drivers, especially not on the freeway.

I consider myself a good driver. (I have never been in an accident in my 23 years of driving in all types of conditions.) However, while driving, I am NOT actively looking for bicyclists or motorcyclists. They are simply another part of the road activities of which I am generally aware. They aren't a priority of my awareness like the car in front of me is.