Each person needs their own personal space. This is a certain area or place, room or chair where you can relax after a hard day's work. When a person is in his private area, he has the opportunity to relax, calm down or psychologically relax.
Some people just need personal space, others do not attach much importance to its presence. The boundaries of this territory are determined by the owner himself. If someone violates someone else's space, this action can be regarded as disrespect and tactlessness. And such a reaction is quite understandable, because the private zone is perceived by the owner as a part of himself, which means that only the closest ones have access to it.
It is believed that a person's personal space begins at 0.5 meters, this is the so-called intimate border. If someone approaches this distance and closer, the owner of the “territory” feels discomfort, since this is permissible only for relatives and close people.
Scientists have found that the frequency of violation of the boundaries of a person's private space even affects his life expectancy. When someone is in contact with others so close against their will, he is uncomfortable, he may develop neurosis. And neuroses negatively affect health.
Of course, there are people who are friendly and sociable by nature. They do not respect personal boundaries even with those they know very little. It is absolutely normal for such people to hug when they meet, kiss, touch others. Perhaps such people simply do not know about personal space, since they grew up, for example, in a large family. But not everyone perceives such behavior positively, and the reaction to communication with them, even if they are sincere and selfless by nature, will be negative.
It is often customary within the family to keep a distance of personal space, and this is completely normal. Each person needs sometimes to retire in his nest. Therefore, both in the family and at work, and even more so on the street with strangers, you need to be tactful, and not intrusive. This behavior will more dispose the interlocutor to communicate. While respecting the personal space of the neighbor, a similar response will come in response. And, of course, everything must be within reasonable limits so that the observance of private space does not turn into unsociability and alienation.