Why is gretel unable to answer some of brunos questions?

Gretel is often unable to answer some of Bruno's questions due to her limited understanding of the complex and harsh realities surrounding their lives, especially regarding the nature of the concentration camp and the implications of their father's role as a commandant. Additionally, she tends to dismiss Bruno's inquiries as childish or irrelevant, reflecting her own growing conformity to the ideologies of their environment. This inability to engage with deeper issues highlights the innocence of childhood and the impact of indoctrination.