Abba_S: I’m still confused about what type of school system we are talking about here. From your post, it sounds like a boys’ Chinuch Atzmai school. Is that correct?
If it’s a “regular” Chareidi boys’ school, they are private and don’t have much secular education anyhow. And if it’s a girls’ school, they would get secular education anyhow, because all girls’ have secular education and all girls enter the work force.