The swiftness of present social changes compel us to question what grounds the entrance into the adult world. To be an adult seems far more a new modality of psychological functioning, liable to quite a few unpredictable changes, rather than a state as such. Such a functioning does not so much refer to an absolute ideal than to the potentialities of a given subject within a given context. It would thus reside in this very capacity of the ego to welcome and be in contact with what remains of the infantile in everyone without being overwhelmed and threatened.