Considering the realistic humans in New Donk City, the fact that Pauline now lives among them without it being too weird, and how much taller they all are than Mario, is Mario a human?
And if he is, is he a different kind of human being that came from the Mushroom World (yes, that's what it's called)? Or is he just unusually short?
And where would that leave other longtime characters like Luigi or Peach?
Ever feel like everything's meant just to make you angry? Welcome to my world.