The OP wasn't clear in their post but as to whether or not their game is Cartoony or Cinematic but they did say it was a 10 year old. The Erza reference, though useful, is not of a 10 year old. If you want to play an actual child, not a teenager, then you should expect some disadvantages on your Attributes and Skills. You're 10 years old after all, 30kg+- (70lbs), and in grade 4 or 5 (assuming they grow up on a world with an education system). The kid who played Anikin was 10 and all he had to do was say a few lines and pretend he was on a roller-coaster ride, I've seen trained dogs give a more convincing performance. This is what the Player wants to their PC to be based on, which is a pretty unconvincing argument to give them normal stats.
Kicking the player in the nuts because Jake Loyd didn't give a convincing performance isn't really kosher though. Despite his size and weight the actual character of Anakin still did stuff like any other appropriately statted PC most likely from a piloting class.
If you wanted to make the argument he did something like exchange 10ish starting XP for Sil 0, I might be willing to negotiate. But I still say penalizing a young character simply because he is a young character doesn't really fly.