Question: How is this possible that Ahsoka became Anakin's apprentice? It makes no sense at all. Only Jedi Masters can have apprentices but Anakin was never given the title of the Master. In Revenge of the Sith he even lamented over the fact that he became a member of Jedi Council without receiving the title of the Master. So how could Ahsoka be his apprentice?
Bishop73
4th Sep 2021
Answer: It's not just Jedi Masters than can have Padawans (apprentice), Jedi Knights can also have them. And at the time Luke was the rank of Knight. In fact, the reference book "The Star Wars Book", it says once a Jedi Knight trains a Padawan to knighthood then they could become a Jedi Master.
Bishop73