  In practice, attributing autonomy or free will to humans on the basis of the fulfillment of a set of conditions turns out to be a less than straightforward endeavor. We attribute autonomy to persons in degrees. An adult is generally considered to be more autonomous than a child. As individuals in a society our autonomy is thought to vary because we are manipulated, controlled or influenced by forces outside of ourselves, such as by our parents or through peer pressure. Moreover, internal physical or psychological influences, such as addictions or mental problems, are perceived as further constraining the autonomy of a person.