The family is made up of human beings. No two people are alike, and therefore, differences in potential grow and develop between parents, between siblings, and between parents and siblings, forming complex power systems that culminate in unique relationships of dependency. The figure of the eldest sibling is a classic example: they believe themselves to be superior to others and, at the same time, entitled to take advantage of their parents (the figure of the heir, enshrined in this country, is a perverse institutionalization of this reality). If the family is large, the dynamics become more complex, as do the combinations of loyalties. There is a far from innocent tendency to believe that everything is justified in the family's best interest. And it is in this context that the principle of reality is often lost, and nihilism unfolds: everything is permitted. Simultaneously, internal rivalries and loyalties take shape, with the father-mother dynamic as the guiding thread.