The nuclear family is said to be the basic unit of society…

““The nuclear family is said to be the basic unit of society but is itself under extreme pressure. Divorce rates have soared. Divorce is a double whammy for kids because it creates competing attachments as well as attachment voids. Children naturally like all their working attachments to be under one roof. The togetherness of the parents enables them to satisfy their desire of closeness and contact with both simultaneously. Furthermore, many children are attached to their parents as a couple. When parents divorce, it becomes impossible to be close to both simultaneously, at least physically. Children who are more mature and have more fully developed attachments with their parents are better equipped to keep close to both even when they, the parents, are apart — to belong to both simultaneously, to love both simultaneously, and to be known by both simultaneously. But many children, even older ones, cannot manage this. Parents who compete with the other parent or treat the other parent as persona non grata place the child (or, more precisely, the child's attachment brain) in an impossible situation: to be close to one, the child must separate from the other, both physically and psychologically. Owing to the marital conflict that precedes divorce, attachment voids may develop long before the divorce happens. When parents lose each other's emotional support or become preoccupied with their relationship to each other, they become less accessible to their children. Deprived of emotional contact with adults, children turn to their peers. Also, under stressed circumstances, it is tempting for parents themselves to seek some relief from caregiving responsibility. One of the easiest ways of doing so is to encourage peer interaction. When children are with each other, they make fewer demands on us.””

— Gabor Maté