Can one not be "introverted" when he wants to be alone, and "extraverted" when he wants company? Even more than arbitrarily defining human beings into categori

Can one not be "introverted" when he wants to be alone, and "extraverted" when he wants company? Even more than arbitrarily defining human beings into categories that don't necessarily have a scientific basis in reality, the "introvert/extravert" paradigm is one of several that negates the concept of free will, that we, as humans, ultimately have control over our own actions.