It's a very good point u make. I've had many discussions with my mates over the years abt this problem, and I'm amazed that there hasn't been more accidents and injuries. IMO something should def be done to solve the problem, like u said foam or something, but sadly I don't think anything will be done unless someone suffers a serious head injury or something similar, as its all down to advertising nowdays and any safety measures would no doubt cover up or at least take up part of the advertising space.