Katara is fourteen, two years older than Aang. And Zuko is two years older than her. Why is that OK, but Aang being younger isn't? Because he's a boy, and boys should be older and taller than girls? I favor Kataang because it was against such stereotypes, as opposed to the fan-made, bad boy attraction of Zutara. There's more to a relationship than 'looking good together' you know.