I would like to post here what I accidentally found... I think it is disgusting -adults enjoy themselves watching how two kids /12 or 13 y/o/ fight and one of them crushes the face and the head of the other kid.
I think these kinds of"BATTLES' have to be prohibited and I do not think it is SPORT

YouTube - Boy Muay Thai 2 (http://www.youtube.com/watch?v=f2srQynl1nc)

I'm not really a fan of martial arts competititons, but many people are. In this instance, its apparentally monitored and controlled to some extent. But its not my cup of tea.

U don't really hit people that hard, it should all be under control. That's how we do in Asian countries.
I have my black belt on martial arts, never injuried, depends on your purpose of practicing it as well.

You are asking for is it part of western cultures? Good question?
LOL