Every one of the things you mentioned are superficial designations that can change. But the sentient being, the one who is observing the changes, remains, the constant observer of those changes. At one time you were a boy, and thought you were a boy. But you can no longer claim to be a boy. But the observer remains constant. Therefore the question is, just what is the sentient being who is observing all these changes? It is a very profound question, because in fact, the question of sentience has confounded scientists to this very day.
Therefore, to say someone is self realized, in truth, is not a trivial matter.