Of course. [ Aang is, after all, the authority on Airbending mastery. That his daughters get to get to know their grandfather is a bonus on top of getting a teacher who can relate to their energy levels more easily. ] Who knows? You may have more success in teaching Korra the finer points of Airbending as well.
[ He certainly benefited from his father's teaching methods. Being another Avatar can only be helpful. ]
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[ He certainly benefited from his father's teaching methods. Being another Avatar can only be helpful. ]