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i was curious to know why most people i've encountered support kataang,it came to my knowledge from the urban dictionary(linked above)
that kataang is supported door children of pedos(or teens with a shota complex ._.)
zutara is a much meer mature love,so it's easy to understand and in my opinion katara and aang had always a mother/son relationship,she taught him things that a mother would,isnt it sick for a mother and son to get together?