Salva is sad and confused on why the group left him. He does not know what he will do with no adults around to care for him. This shows that he is scared.
Since Salva's uncle died Salva is treated badly by the group. He has to beg for food and they think he is useless. Salva is determined to prove them wrong and show them tat he can help. This shows that he is no longer in need of an adult.
Salva notices that thousands of other boys are following him to Kenya. He teaches them and becomes their leader. He is now determined to get them safely to Kenya. This shows that he is dependent and is now a leader. In no more need of an adult.