How educated must ANYONE be?

This article really hits home for me as I battle with the decision to either continue with my MFA or to bring it to a screeching halt. I question whether or not all the education we receive in an institutional setting is all really necessary. There will always be an element of the real world and real situations that can just not be brought into the classroom. A doctorate for an artist seems like just another layer of education; something else to delay your life plans. I do not want to have to spend the majority of my life in school in order to be able to practice what I enjoy doing. While some of the skills that are provided in a doctoral program would seem to be beneficial to an artist they also seem like skills that can be acquired in a variety of ways. I am strongly against removing artists from the act of making/creating which is what a doctorate would seem to do. It is bad enough that institutions keep stretching out the length of their MFA programs, I can't imagine having to complete a doctoral program in addition to it.