Final answer:
Amir and Soraya from Khaled Hosseini's 'The Kite Runner' desire to have children but are unable to because of infertility. This struggle is separate from the details provided from Fitzgerald's 'The Diamond as Big as the Ritz', which involves characters escaping from luxury to potentially live in poverty and freedom.
Step-by-step explanation:
It seems there is a mix-up in the details provided. The excerpt given is from F. Scott Fitzgerald's The Diamond as Big as the Ritz, which is a different story from the one where characters Amir and Soraya are involved. Amir and Soraya are characters from Khaled Hosseini's The Kite Runner. In Hosseini's novel, Amir and Soraya wish to have children but are unable to due to infertility issues.
In Fitzgerald's story mentioned above, John and Kismine face a different situation. They are escaping from a life of opulence to one of poverty and freedom after their home is attacked. Kismine is excited about the idea of being poor and free, but John is realistic about the challenges that lie ahead. Their situation highlights the idea of being free versus being comfortable, and the choices people make when facing danger and change.