In every map there is a goomba hut: a house of sorts that's shaped like a goomba. In some levels (namely the space land) it doesn't fit in well, but it's always there, and always fairly close to the path.
My question: is there any purpose to this thing? At first I thought there would eventually be a secret to activate these, so they'd work as a building, like a bank or a shop, but nothing's happened so far, and I can't think of anything else that could do anything.
Will they ever or were they ever at a point in planning supposed to serve a purpose, or are they just "there?"