Board Thread:Theories/@comment-27441457-20151225042055/@comment-27938131-20161023102742

The question you asked was really interesting. And now that chapter 86 came out, we have more elements.

The first king (I think) built the walls to save his people not only from wandering titans but also from Marley. My belief is that the wandering titans protect the Eldians somehow but the first king and all the following kings and queens also refused to wipe out the titans because it's the punition for all the horrible things their ancestors did (domination, robbery, murder, kidnapping, rape) But this is just a single point of view, and like little Grisha said to his father, the Eldians and the people who stay in Marley aren't responsible for what their ancestors did. Plus in Eldia, many were killed because they were too creative or curious (like Erwin's dad) which would have lead people to want to go outside or learn more about the origins of the world they live in.

About the hometown, I always wondered why did they send children. I know it's easier for infiltration, but humanly, what kind of f*cked up ass**** (I'm so mad, sorry for the choice of words) would tell little kids to go commit mass murder?! Now I get it, they're considered as "low citizens" so it's much more easier to train them, make them eat people and order them to go kill innocents. Hah, I'm still angry.