We all got used to the currently standard design of our houses or apartments, which is a large space divided into several rooms by walls and doors. So don’t think it’s unpractical and we don’t even think it could be otherwise. However, there’s a very different idea that was developed by Adolf Loos in the 1920’s and that Edwards Moore adopted when designing the Cubby House.
Adolf Loos had a popular theory called “Raumplan” that basically said that a house should consist of one continuous arrangement of the living spaces, instead of diving the house into rooms by adding walls and doors. It sounds dramatic but for some people this could be a very good choice. Adolf Loos is also famous for his essay “Ornament and Crime” that basically says that unnecessary décor should be punished as if it were a crime. I totally agree with this one.