In "The Kite Runner" by Khaled Hosseini Raymond Andrews, an agent, warns Amir that promising things to children can be tricky, and told Amir to give up Sohrab adopting Amir becomes really angry and says that someone with kids shouldn't have Andrews' job
In "The Kite Runner" by Khaled Hosseini Amir really wanted to adopt Sohrab in "The Kite Runner" because he felt super guilty about how he treated Sohrab's dad, Hassan, who was also Amir's childhood friend and half-brother.
A long time ago, Amir saw something bad happening to Hassan but didn't do anything about it, and that made him feel really bad. When Amir finds out that Hassan's son, Sohrab, needs help, he sees it as a chance to make things right and fix the mistakes he made before.
Adopting Sohrab helps Amir feel connected to his past, remember Hassan in a good way, and try to get forgiveness for what he did wrong.