There are also "the front door is facing the balcony, which is easy to attract thieves", "When you get started, you should know that you will become rich in the future (not many people can raise the threshold in ancient times, but those who can afford it are also rich families)", "Going against the bow in front of the door, always hoping to fail (this is sheer nonsense)" and "When the house meets the grave, children and grandchildren should find their way out (because it is easy to scare children)"
Don't pay too much attention to this matter, because now we have developed small houses in high-rise residential areas, as long as safety is the mainstay and there is no cross-pollution.