Why isn't there a hero?

While reading The Sun also Rises, I was intrigued by the narration in the novel. When thinking about all the novels we’ve read in this class, none of them really has a hero. Jake’s role as the protagonist and the narrator allows him to have the ability to shape the reader’s viewpoint and to create a hero in the novel. However, his narration is kind of wishy washy and biased. Jake’s initial view of a character shapes the way the reader sees them for the rest of the novel. For example, the reader cannot take Cohn seriously after Jake’s initial assessment of him, leaving him a target for the rest of the novel. 

Jake’s biased viewpoint doesn’t allow for any characters to be seen as potential heroes in the novel. Although Cohn could be a potential hero, with his noble value system, Jake and his friends ridicule the tactics he uses to pursue Lady Brett. Not many characters are left as potential candidates for being heroes, after Cohn and Jake are eliminated. I think the lack of a hero encapsulates the idea of the Lost Generation. Without a hero, this generation is left hopeless and morally lost as shown by Cohn, Lady Brett, and Jake.