This story requires the reader to engage and use the skills you have cited in order to understand what is going on in this story. Without it, we are rather confused as to why a woman would take in a boy who has just tried to rob her into her house and give him food and money. One of the ways in which this story is actually so clever and good is the way that it necessitates a deeper engagement as you have to try and infer motives from the information you are given as we attempt to understand why Mrs. Jones does what she does and the massive impact that this has on Roger's life. Often, giving all the answers overtly in literature makes for lazy readers who do not have to really engage or think about the action and characters in the story. Langston Hughes ensures that this is obligatory by denying us those easy answers and making us think much more deeply about the characters and the action in this excellent story.