This is not such a destructive cult. The girls are now 13, and S. is an exceptional good student (and her parents are rightly proud of her), with very good manners and at the same time self-confident. Near perfect, I'd say.

But she will have to fight if she wants to go dancing or so. Or else wait till she is 18. Or else, accept the norms her parents live by. By the way, neither the mother nor the girl wear headscarves.