Final answer:
The father in the narrative may have believed that his new business venture would be more successful due to strategic location, dedicated teamwork with his wife, his hospitable nature, or the hope for better success than the previous venture.
Step-by-step explanation:
The question is asking for reasons the narrator's father believed his new idea, which is suggested to be a restaurant near a railroad station might succeed after his previous chicken business failed. The father's optimism could have been driven by different aspects such as the location's advantages, their devoted work shifts with his wife, his ability to provide a welcoming atmosphere to customers, or simply the belief that any new venture would be a step up from his unsuccessful past endeavor. The provided excerpts do not offer explicit reasons for his confidence; instead, they offer glimpses into various moments and feelings experienced by the characters, including determination, longing, and the contrasting serenity of a family closing their day. While these scenes from various narratives set a rich tone, they do not directly explain the father's thoughts regarding the future success of his new business venture.