First, let's explain it word for word. Those families with good economic conditions will have better kitchen decoration. And those families with poor economic conditions usually decorate the living room magnificently. This sentence does not mean that the poor and the rich have different aesthetic views, but because of the limitation of economic conditions, the poor and the rich want to pay attention to different places.
Let's first analyze why rich people will focus on decorating the kitchen. Because the kitchen smells of oil smoke, it is often said that illness comes from the mouth, so rich people will pay great attention to the hygiene of the kitchen. Because the hygiene of the kitchen is related to the health of the whole family, rich people have enough money to decorate the kitchen, which is not only gorgeous, but also has all kinds of facilities. Look at the materials of various tableware, such as pure silver and carved, and you can see a person's background. Poor people's kitchens wouldn't be so luxurious.
Secondly, we will analyze why the poor pay attention to decorating the hall. The living room is the facade of a family, because the first thing guests see when they look at the house is the living room, and the poor will put money on the decoration of the living room. However, outsiders are generally not allowed to enter the kitchen, and they do not pay attention to the decoration of the kitchen when the economy is not enough. Although we can't use this sentence to judge whether a person is rich or poor, there is some truth.