My 6 yr old just started taking Taekwondo, his school is affiliated with the WTF. FYI - he is having a blast, we're very happy with out school choice. It has a great kids program. It seems that there a a number of Taekwondo associations out there. Could someone give me a rundown of the various associations? There seems to be 3 main ones. The World Taekwondo Federation, American Taekwondo Association and International Taekwondo Foundation, are there real differences between the 3 on how they teach or what they require or is Taekwondo the same regardless of association?