An objective reason is that Japan has a small land area, and it is in an earthquake zone, where earthquakes often occur. If there are too many things at home, or things are trivial, it is not easy to take them away when you run away. In addition, according to research, they are keen on minimalism and have psychological factors. Research shows that when a person spends less time and money on unnecessary people or things, their thinking and organization will be clearer, which is reflected in the home layout, that is, the furniture is simple and organized.
In some Japanese families, they have no beds and sleep on mattresses at night. Shampoo and other cosmetics are kept in the closet. Clothes that are not often worn are not put in the wardrobe. There may only be a table and a chair in the bedroom. Sometimes there are even tables and no chairs. There is little decoration in their room, but they are all exquisite. The less other things, the greater the living space.
In fact, the layout of the room is only the simplest surface phenomenon. When we can clean up the weeds in our hearts and keep only the necessary things, our hearts will be clean and transparent, and our thoughts will be simple and clear. At this time, there is enough time and energy to do the simplest but most important things to the extreme. This is probably why some people obviously have the ability to buy enough things, but they like the simplest furnishings.