response: Well, cheerleading has a number of functions too, like motivating sport teams, competition or entertaining the crowd.
original_response: I think it's a fair number as they are mostly to motivate sports teams and entertain the audience. I assume there are so many teams to cheer for!
history: Cheerleading seems to still be popular among kids? I am not sure but its predominately in the U.S. and has around 1.5 million participants for all-star cheerleading. Thats a lot of people, I guess I would have thought more though.
knowledge: It can be performed to motivate sports teams, entertain the audience, or for competition.