Why do you suppose margot makes no effort to join the children in their games or to respond to their taunts?

Margot may feel isolated and different from the other children, which causes her to withdraw and avoid interacting with them. She may also be shy or introverted, making it challenging for her to engage in social activities with her peers. Additionally, she might be dealing with personal struggles or issues that make it hard for her to participate in the games or respond to their taunts.