What exactly does Luke know about his father?
In the movies he sees Vader kill Obi-wan, and then learns that he is his father. But does he know more about Anakin's past, like the fact that he was a slave, and the Jedi did little to help his mother which pushed him down the path to the dark side? Does he find out that Obi-wan hacked off his limbs and left him burning by a lava lake to die?
It seems like he doesn't know a lot of this history, especially since he begins trying to rebuild the Jedi order and seems to have great respect for them, despite what happened to his father and the galaxy as a result of their actions in the past.