Final answer:
The texts do not explicitly state why Kane's mother sends him away. The motivation could be for a better future, to protect him from harm, or to serve the narrative's development in literature.
Step-by-step explanation:
The reason Kane's mother sends him away is not explicitly provided in the text excerpts you've supplied. The reasons could range from ensuring a better future, protecting him from a harmful family environment, to enforcing some sort of familial strategy. In literature, characters may be sent away by their parents due to complex personal, social, or economic reasons, each scenario aiming to serve the narrative's progression or the character's development.