Closed Doors

The Earth has houses and houses have doors. It is observed that the doors are closed. The people close the doors for security reasons. Should close the doors and keep close. It is a good habit.

But in my life, I have seen the closed door of the rooms. What is the message behind this? Why do the people live in a house but living separately? What does affects the closed doors on others? Ok, I understand for privacy it is required. But I think there are many other problems behind closing the doors. Someone wants to live alone all the time because he loves loneliness. Some sad people live with closed doors. Some of the closed doors to avoid disruptions and irritations. To avoid rudeness, sometimes the people live with closed doors. Sometimes the people are tired from the race and crowd of the world. I feel that everybody is fed up with each other. No one wants to see others. Everyone wants his praise and charm. Is there, it’s a reason for closing doors? Maybe?