"Children need to be taught that failure is frequent and normal, it is not the end of the world and we should all help this by a cultural shift in admitting that we failed. Only by learning to lose can we achieve success."
The above is an excerpt from the article that the OP linked to in his original post.Its not about teaching kids to fail, but teaching them that IF they fail, its not the end of the world, and to learn from it.
Most problems and violence in sports involveing children comes from it being drilled into thier heads, that failure is not an option, and to do anything to win.If we taught them that winning is the goal, but failure is also winning if you learn from that failure, and continue trying to win, then these young people would be more realisticalyy able to cope with life as it unfolds.
Everyone wants to stick close to people who want to win, but i dont know anyone who WANTS to lose.