The only galaxy that Luke had ever known in his life was one ruled by the empire, one where the emperor and Darth Vader ruled with an iron grip and through fear to keep the galaxy in line. What the empire had done in the name of ‘order’ was atrocious, he was thankful that his mother was still around. He saw how she was when she talked to other Moffs in their given regions of the galaxy, sympathizers to overthrow this empire and return the galaxy to a democracy that it once was and he was glad that she was as fierce as she was in matters of politics.
Though as the rebellion against the empire grew and showed that they could fight the empire and possibly win Luke knew that he wanted to fight, “Mother, please! The rebellion needs good pilots and good fighters, we both know that I’m both. If I am as strong in the ways of the force like my father like you say then I have to go help.” he said trying to plead with his mother, he didnt want to go against her. He knew about what happened to her the day the republic fell and knew about how much she had lost and almost lost that day and he knew that she was scared of losing him and his sister. “I know its a risk, but to end this tyranny of the empire, its worth the risk isnt it?” he asked her trying to convince her that he needed to go fight.