Amanda goes into this interaction with Miss Trunchbull seemingly believing that her mother’s love of her braids is going to protect her. But Miss Trunchbull shows that she doesn’t respect parents’ authority to support their kids, if that support goes against what Miss Trunchbull wants. Miss Trunchbull’s hatred of pigtails, meanwhile, also reads as sexist. Pigtails and braids are associated mostly with little girls, and recall that Miss Trunchbull hates little girls way more than she hates little boys.