English Paragraph - Why does Sade feel guilty?

In the book 'The Other Side of Truth' Sade is hesitant about talking to the social workers as she does not want to reveal her father's identity, yet it pains her to lie to the kind social workers. "Part of her wanted to tell Mama Appiah the whole truth... But fear stopped her" (p. 85). Sade and her brother Femi are in a difficult position, having to choose between telling the truth and lying to protect their father. Evidence of this is shown when Sade and Femi struggle to explain their past to the social workers, "They couldn't keep silent forever... But what cold she say that was safe?" (p. 75). These pieces of evidence prove to us that it is indeed fear that is stopping Sade from telling the truth, fear for her family's sake. It is a difficult decision for the two children to make, they can either lie to protect their father or confess to secure their future.