Chinuch Hora'ah of the Day:
When it comes to the chinuch of girls, it is not a matter of Torah study and amassing knowledge; rather, it is about ensuring that they will be Yiddishe kinder (Jewish children). Most of the time, the girls live in an environment in which people are immersed in worries about parnassah – “making a living” – or, on the other extreme [when there is an abundance of parnassah, they are preoccupied with] “having a good time.” They do not see at all [the importance of maintaining a distance from the ways of the nations] ונפלינו אני ועמך מכל העם אשר על פני האדמה (“I and Your people will be distinguished from every [other] nation on the face of the earth”).592 They do not see that this is part of one’s conduct in the spirit of Yiddishkeit. They associate Yiddishkeit only with limitations and self-affliction [“this is forbidden” or “that is forbidden,” and so on]. ...
This is one of the roles of the “Beis Rivka” and “Beis Sara” institutions founded and run by my father-in-law, the Rebbe: to ingrain in the hearts of the students that they are Bnos Yisrael, to explain to them the kedusha that this entails and the goodness and purity that go along with this, and to explain to them the responsibility placed on them.
(Reshimos vol. 3, p. 261), cited in Shaarei Chinuch, pp. 266-267