Isn't there two floors in the cat apartment in Folk Town? Why do we only have one floor?

Cat apartments are usually established spontaneously by cat lovers. Some cat apartments in private towns may have multiple floors, but not all cat apartments are like this. Some cat apartments have only one floor, which depends on the local building conditions, the number of cats and the wishes of the organizers. In addition, even a multi-storey cat apartment may not open all floors to the public, but only one floor may be open to the public, and the other floors are set for the safety and privacy of cats.