Thats cuz here in the US, law suits take place over development of a kid. My kid is the only one I can train the way it was...and he loves it and goes in for more. The other kids are lazy and always quit. I am an adult teacher anyway...I freakin hate kids class. I do it to make the extra needed bucks. Anyway, back on topic, I took TSD starting back in the late 60's and believe me it was hard core. There were no pads. That didn't start till the mid 70's. Karate people were hard core in the old days. To me the style does not have the efficient movements I look for in martial arts but they were hard core back then. I think that hard core'ness is what Karate is supposed to develop in an individual more than superior fighting skill.