The girl's parents accepted to expose her to risks and responsabilities that were acceptable at her age in the past, but not nowadays. If they fail to understand this situation, the state's intervention is justified.
It is state intervention that will undoubtably mean she will never be allowed to do this as a minor, regardless of skill and abiity. By intervening in the first place the authorities will now have two choices. To deny permisssion or to allow her to go. If they now allow her to go they are giving their approval with associated liability for their decision.
The result will be they will not allow her to go just to cover their backsides.
Cheshirecatman