THIS IS LITERALLY ASH KETCHUM’S ROOM IT IS THE SECOND SCENE OF SEASON 1 EPISODE 1 OF THE POKEMON ANIME FROM 1997 CAN FAKE NERD BOYS PLEASE GO
Also consider: sports fans.
Pokemon is like if sports and cats were blended into the ultimate all-consuming marketable thing
Also, like, in recent Pokemon stuff, Pokemon seem to exist in place of real-world animals instead of alongside them, so all that “pokemon stuff” is their equivalent of just… having an animal on it.