Unfortunately, the vast majority of bike wrecks are avoidable. Too many motorcyclists put themselves into the danger zone and don't even realize it. Everyone should be required to read the writings of David Hough. The "Proficient Motorcycling" series, "Street Strategies: A Survival Guide for Motorcyclists " among other great writings. Too many motorcyclists ride the same way they drive a car, and/or think they are on a race track when they are out on the road.
BTW: I have over 100,000 miles ridden in just the past 5 years and have been riding for 30 and I still like to keep David Hough's observations fresh in my memory.