Our child has always known they are free to ask about the circumstances of their adoption and we have always given open, honest, age-appropriate answers.
However, this "free to talk" attitude may not have helped them deal with peers at school who ask about it. Really it's none of their business.
How do we help our child to understand it's an open topic at home and nothing shameful, yet they shouldn't feel obliged to answer intrusive questions coming at them from the wider world?