I disagree. Anakin did not have to become anything. The midichlorians created Anakin, not the Jedi. Anyone knowing the ways of the Force can use the Force. This is the lesson that Yoda and Ben learned by the end of their lives. Anakin was created to bring balance to the Force that had become unbalanced because of the Sith's use of the Dark Side. The Force did not care if it was a Jedi Knight or not that did the job only that a Force-User was given the power to deal with the Sith.