Agreed, but WHY do they not do it? I can give you at least one of my main reasons...because to do that puts your bike at risk of getting dropped. I have done race and course schools, did a bit of WERA racing, and try to ride the Pace and smartly every time I do. I also practice maximum straight line braking skills. With that said, I do not go out and put my 600lb+ bike covered in plastic at risk of getting dropped (read $$$ to fix) for training. I know I will probably get flamed for that but at least it is the truth, as I am sure it is for most.