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I think this makes perfect sense. Good one from the Buddhists this one. It's all about making the children stronger, tougher and more aware of them self and people around them. How they affect the world and how the world affects them. If the world is mean, harsh or tough, they are already capable to handle them self.

One can also as an adult start practicing this. Can be quite exhilarating.

Here is a good book on the subject

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