Mr. Benedict has followed his own advice to Reynie about building a family with people you love. He has already adopted Number Two and Rhonda, and when Constance is the only member of the Society left without a family, he offers to adopt her. He honors Constance’s independence and agency by asking if
she will adopt
him as family, granting Constance the power in the situation so she does not feel condescended to. Mr. Benedict’s excitement at her acceptance demonstrates how much he has come to love his new daughter.