As far as Jen is concerned, Luke doesn’t need to be as careful as he is. But Luke has been trained his whole life to believe his life depends on being careful, so breaking these habits is difficult for him. It’s also hard to comprehend the possibility that the Government is “incompetent and stupid,” since Luke’s family believes the Government is all-knowing, all-seeing, and all-powerful. Posting Luke’s observation about the grain is the first way Jen demonstrates to Luke that they can protest and advocate for a better, fairer world.