Often young mothers complain to their husbands, close friends, and, ultimately, to a psychologist that their mothers, who are the child’s grandmothers, interfere in the upbringing of the child, and thereby harm him. Therefore, they supposedly need the support of a psychologist, who would help resist such negative psychological and physiological influence from grandmothers on the child. There is no doubt: a grandmother, in addition to caring for her grandchildren and helping their mother, has a very important function in raising a child. Grandmother has many advantages over mother in this regard. Firstly, she does not get tired of the everyday worries of caring for a child, which take up most of her time and energy. Grandma is often left with the most pleasant things: direct communication, walks, activities...Love in its purest form without the manifestation of negative emotions, which mother can no longer cope with. Secondly, grandmothers are not so demanding of their grandchildren. They have no expectations about their future, they are more relaxed about school problems, they control less and resolve more. Thirdly, the child sees and copies not only the behavior patterns of his parents, but also learns how to interact with the outside world from his grandmothers. Grandmothers, in turn, can tell a lot about their parents and grandparents, developing in the child a sense of belonging to the family, and even passing on his strength (where is Carl Jung?!) and energy. However, many mothers believe that it is easier for them to completely refuse the grandmother’s participation in raising their grandson rather than put up with her behavior. When asked what they don’t like about the grandmother’s behavior, mothers answer a psychologist’s consultation as follows: - allows the child to do what we do not allow, and after that it is difficult for us to negotiate with him; - does not allow the child to do what we allow , and the child cannot understand what the reason is; - gives him to eat unhealthy foods; - teaches him what and how to feed the child; - dresses him too warmly; - teaches him how to raise a child; - criticizes the child’s mother and father in front of him. ;- gives advice that was not asked of her;- shows excessive concern about the child’s condition;- invades the parents’ territory without permission and establishes her own rules. Such actions on the part of the grandmother can occur if the relationship with her does not have a clear boundary separating the space of the child’s parental family and her personal space. The boundary is designated by the child’s mother based on the axiom that she is completely responsible for the child’s life, therefore, only she makes all decisions regarding the care, maintenance, health and upbringing of the child. If a mother needs help from her grandmother, then this is the subject of discussion: when, how often, to what extent and what exactly the grandmother is ready to do for the child. When there is a desire to leave the child with the grandmother, permissive conditions should also be indicated, for example, the grandmother can spend time with the child only if she does not feed him fried sausage and chocolate, does not make changes to his wardrobe, etc. It would seem that these are quite reasonable conditions, but many mothers exclaim in surprise at such a proposal: “What are you talking about! Tell her that! She won’t even listen, but I’ll learn a bunch of new details about myself!” Arguments can be irrational expressions like: “I raised my children, I know how to do this”, “I’ve lived my life, I’m more experienced, I know better”, “Before they always did this in these cases”... But all this does not matter no role, since grandmothers do not realize that they are repeating the same mistakes made when raising their children. Also, these arguments do not matter for the simple reason that responsibility for the child does not lie with them, and, in fact, their opinion was not asked. Often grandmothers, especially when it comes to mothers-in-law, emphasize that their son got a far from ideal wife, and even more so, the mother of his child. This happens due to jealousy. As a result, mom