I don't know if I qualify here or not. I started riding just over a year ago, and have logged about 23,000 miles on two bikes, and have had one accident. While I don't believe ALL accidents are preventable, I'm sure most are. And no, I don't see any reason to believe that ALL motorcyclists will have an accident.
When I first started riding, I read, or heard or somehow or other got the impression that when a new rider got to 5,000 miles, a warning light should go on. That was supposed to be the point where the newness of it has worn off to the point that the new rider is thinking "I've got this thing figured out." That was it exactly in my case. Just over 5,000 miles and I "layed it down." (Boy that does sound dumb doesn't it.)
Now it wasn't a deliberate laydown, that's just what happened. There are two versions of this story. One way I remember it, and the way it must have really happened.
The way I remember it, I was on the way home from work, and a dump truck passed me on my left. I was watching him to see what he was going to do, looked up, saw a car stopped in front of me. I got down hard on both brakes, saw I wasn't going to stop, braked harder. The back brake locked, the bike skidded out from under me, and bang, I was down, and bouncing down the road. I wasn't hurt, and the bike apparently didn't hit anything but the pavement. Better brake control would most certainly have stopped me. My fault totally. No damage to the car, and $2500.00 to my Majesty.
However, when I have driven by the site a number of times I have come to realize that it could NOT have happened that way. There was no place for the dump truck to pass me. The dump truck had passed me a quarter mile or so from where the accident happened. So what happened? I can come to only one conclusion and that is that I feel asleep, and woke up just in time to see the car stopped in front of me. (A car had stalled in front of her. Not her fault at all.) I was working graveyard shift that day, and had ridded from Richmond almost home, about 75 miles and remember being tired, but thought I had gotten past it.
The lesson I learned and I have carried it over to cars is when I get tired I STOP. Right now. I don't care where I'm going, or how important it is that I get there. I get off the bike, or out of the car. I walk around. I exercise, which for an old fat man is probably pretty funny to see, I get a cup of coffee, or better yet, take a ten minute power nap sitting right on the bike or in the car.
I'm trying hard to avoid another one. (Dropping a LT at zero speed, turning into the driveway the first time you ride one doesn't count does it?