Falling isn't the problem. Had one accident where the motorcycle attempted a u-turn on a 4 lane highway and because he had extended forks he made a wide turn and was hit by a car doing 50 mph. When I got there, at 5:00 pm on a hot July day where the asphalt was soft underfoot, there the two were with both having compound fractures of both legs and road and asphalt burns. Still alive. And they tried suing the lady that hit them. Year later had to testify about the accident investigation and they could barely walk.That's hard to argue with that point of view. Last year I celebrated my 50th year in the saddle - Ducati Monster 1200. I've never fallen off on the street. Knock on wood.
And I did see a guy with short legs on a Harley at a stop light fall over and it was too heavy for him to get back upright.