These views were reasonable in the old days, because at that time, the distance between the two gates was relatively close, neighbors frequently walked around, and the two houses competed for public space, which easily led to the escalation of contradictions between the two sides, the disclosure of privacy, and it was difficult to create a quiet and peaceful living environment.
In modern times, most neighbors are strangers and seldom communicate with each other. With the improvement of people's quality, they are no longer interested in each other's privacy. Moreover, most modern architectural designs, even if two doors are opposite, are separated by a long corridor, which is far away and has a considerable buffering effect. What's more, most of modern people's lives are closed all day after entering the house.
Therefore, the theory that the two gates should face each other is fierce, which has rarely been fulfilled in the modern feng shui environment. Similarly, don't worry about houses or shops facing the street, even if they are relatively stiff. Never point the mirror at the opposite door. If you really don't feel at ease, hang a gourd, or directly use feng shui to resolve things that resist the door. If you encounter five emperors' money behind the door for a long time, you can resolve the door without harming the neighborhood and causing quarrels. There is also a wide distance of modern street construction, large traffic volume, people coming and going, and gas fields colliding.