Chanakya NitiAnushtubh
लालयेत् पञ्च वर्षाणि दश वर्षाणि ताडयेत् । प्राप्ते तु षोडशे वर्षे पुत्रे मित्रवदाचरेत् ॥
Indulge a son for the first five years; discipline him for the next ten; but once he reaches sixteen, treat him as a friend.
parentingsondisciplinefriendship