Free will is the essence of being human. We all have the ability to choose our actions - and accept the personal consequences of those actions.
The choices we make determine our experiences and existance in this life and are what provide our spiritual selves with the learning and understanding we require to become what we were created to be.
Without free will, there would be no growth.
One of my favorite quotes to use when counseling Managers on how to deal with poor judgement: "Good judgement comes from experience. Experience comes from poor judgement."