Can he be objective or is he only able to be subjective. All these contribute to a persons ability to have free choice. Each person according to who he is and where he is. Even in spiritual endeavors, a person may select a certain path and reject another. On the other hand he may be prejudiced by prior understandings and may not seek a different venue.
Free choice is an inherent part of the creation.
Without it, no man is a man. An animal has no free choice. An animal eats when it is hungry and sleeps when it is tired. It is a slave to its animalism. For man to function as the perfection of creation, man must exercise his free will on all levels, for it is possible for him to lose his ability to choose.