Vin,

Lets say that an underage girl can do a triple flip but a normal age girl can only do a double flip.

It would be the hope that a coach would understand, his underage girl need not learn the triple flip because by the time she gets to the Olympics she won't be able to do it anyway.

In other words, there is an incentive to not push the young athletes to do the more punishing tricks, which will be useless at the time of competition.

So while the 14 year old girl may train her heart out, she won't be training to do tricks that are putting greater harm on her body, because of her smaller size, which is also causing more damage to her body.

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