I wasn't being sarcastic when I said that schools here are usually run as for profit businesses. I meant that literally. In the US and UK private primary and secondary schools are almost always non-profit institutions that must beg for contributions from former pupils and charitable organisations. In Argentina a great many, probably most, private schools are owned by individuals who want profit. It's one of the reasons that students behave so poorly here - they are clients whom the school owners do not want to lose, so they put up with badly behaved and spoiled kids.