You're taking your very limited experience and using it to form an opinion that covers all sport bike riders. Can you really not see how thats going to lead to some unfounded stereotypes?
Age has nothing to do with it. You're doing what so many other anti-motorcyclists do. "I saw this one guy on a sport bike fly by me doing a wheelie, so anyone riding a sport bike deserves any accident they get." It might sound like a stretch but I've lost count of how many times I've heard that kind of statement.