Or, some people can't do it, or just don't like it. I like the Caporiea stuff, but I can't do it, so its usefulness to me pales in comparison to what I know that I can do. I would still like to learn how, though. yes every move does has some purpose. all the ancient masters wou;d not have invented moves to show off. the masterts were so into it there was no such thing as showing off so yes every move does has an effect wheater you know it or not