Is it obligatory for Muslims to send their children to an Islamic school—the only one in the city—that was built with an interest-based loan?

Allah has obligated parents to care for their children by teaching them Islamic manners and religious knowledge, following up on their duties, and keeping them away from bad friends and bad morals. Choosing a good neighborhood, neighbors, and an Islamic school contributes to this. The fact that a school is built with a usurious loan does not prevent sending children to it, as the sin is on the borrower, not on the students or teachers. Just as prayer is permissible in a mosque built with usurious money, studying in such a school is also permissible, while it is important to advise those in charge of it to repent.