Sokka and Katara are PEAK sibling representation for many reasons, but one of those reasons is the fact that you literally cannot separate them as “the reasonable one” and “the dramatic hot mess”. Like true siblings, they have to take turns with the braincell.
Sokka’s getting whacked out on cactus juice and poor life choices? time for Katara to put on the Mom Friend Hat. Katara is impulsively stealing from pirates or starting another revolution? guess Sokka’s gotta pull out the Dad Voice™. You never know which one of them is gonna do something completely wild next, but you can be sure the other one will be there on the sidelines, armed with exasperation and vicious mockery in spades.
you know what trope never gets old? when someone sees something important in the newspaper and quickly hands it to someone else to see and the person they handed it to reads an unrelated article or even an advertisement