Alongside of the rare cases of true conversation where there is a genuine interchange of opinions or commands, one can observe in children between 2 … - Jean Piaget

Before games are played in common, no rules in the proper sense can come into existence. Regularities and ritualized schemas are already there, but these rites, being the work of the individual, cannot call forth that submission to something superior to the self which characterizes the appearance of any rule.

The motor rule. In its beginnings the motor rule merges into habit. During the first few months of an infant's life, its manner of taking the breast, of laying its head on the pillow, etc., becomes crystallized into imperative habits. This is why education must begin in the cradle. To accustom the infant to get out of its own difficulties or to calm it by rocking it may be to lay the foundations of a good or of a bad disposition. But not every habit will give rise to the knowledge of a rule. The habit must first be frustrated, and the ensuing conflict must lead to an active search for the habitual. Above all, the particular succession must be perceived as regular, i.e. there must be judgment or consciousness of regularity (Regelbewusstseiri). The motor rule is therefore the result of a feeling of repetition which arises out of the ritualization of schemas of motor adaptation.

"Every observer has noted that the younger the child, the less sense he has of his own ego. From the intellectual point of view, he does not distinguish between external and internal, subjective and objective. From the point of view of action, he yields to every suggestion, and if he does oppose to other people's wills — a certain negativism which has been called "the spirit of contradiction" — this only points to his real defenselessness against his surroundings. A strong personality can maintain itself without the help of this particular weapon. The adult and the older child have complete power over him. They impose their opinions and their wishes, and the child accepts them without knowing that he does so."