Okay!
The large number of people coming in and out makes the door more prosperous and prosperous.
Don’t all the courtyard houses in old Beijing have one main door?
So, from the perspective of Feng Shui taboos, there is nothing wrong with brothers walking through the same door.
As for whether the two families can have a good relationship through the same door, it depends on how you get along.
Good words and no disputes,
Mutual understanding and peace.
You respect me and increase harmony,
Be courteous to my sisters-in-law and make them happy when things happen.