His parents taught him never to use his power for personal gain

Anyways, what did you think he was gonna do, buy a house? Pretty sure nobody would sell a house to a kid, let alone let him have the things needed to buy one, besides money
Remember, he's only 11

Another thing, his parents took him to the orphanage so he'd be safe. if anybody part of the criminal underworld found out that [i]several throusand diamonds[/i] were mugged from the kid, he'd be screwed, so they took him to the orphanage to be safe