No one can tell me that Harry and Neville didn’t clean out Grimmauld Place and make it into a home for kids who had no place to stay over the holiday or had abusive households they needed to escape (and the whole thing was named after Sirius AND Regulus). And Mrs Weasley would make sweaters for everyone and eventually it also became a place for squibs who had been kicked out of home and they came here and got the best possible magical education from a retired McGonagall…