Why does charmy wear clothes if he's a dude

Or would the fact he wears a top, but no bottom make him non-binary

(Yes, I know that characters exclusive to the IDW. Comics are clothed regardless of gender, throwing a wrench into this whole thing.)

Or would the fact he wears a top, but no bottom make him non-binary

(Yes, I know that characters exclusive to the IDW. Comics are clothed regardless of gender, throwing a wrench into this whole thing.)