After his name, it is his age that the child learns to give to identify himself. As soon as he reaches the age of two, he is taught to raise two little fingers for his age. Birthdays are also very important in childhood. They are a source of pride and celebration.
Children look forward so much to their birthday.
Changes in age are therefore first experienced as a source of wonder and a way of appreciating the stages of life. Because age is a verifiable objective criteria. All it takes is a copy of a birth certificate or an identification document to verify whether the person is telling the truth. It is true that reliance on age is based on generalizations, often incorrect ones, about the maturity of young adults. Some young people, at age 15, may very well be mature enough to drive a car, while others, even at age 17, are not.