Not sure if I'm bing pfb but dss (8 and 10) go for jiu jitsu. They really enjoy it but ds1 finds it hard because he is not at all aggressive or assertive. At the end of each session the class sits in a circle while children take it in turns to spar in pairs.
One of the teachers in the school (although he does not teach this particular session, teaches more advanced groups) has a daughter in this class and when it is her turn he advises her what to do throughout the sparring from the sidelines.
She is very physically strong and defeats her opponents. I don't think this is fair as the extra advice gives her encouragement and a technical advantage. None of the other parents cheer their children on in any way. I think we all pay the same and all children should be treated the same, or isthat naive?