What 13 year old is racist? Parents entirely at fault.
Kids pick up racist attitudes from school and from the media, the best parents in the world can't stop that. But they can apologise on their kids' behalf and not whine about how one of the most talented AFL players of the century doesn't like being called an ape.
(DISCLOSURE: the Swans are my second AFL team after the mighty fighting Hawks. If Adam Goodes played for Carlton I would probably be all like LOL sucks to be you.)