Why are Britains elite private schools called public schools?
These schools were (and are) public in the sense of being open to all students in principle, though at the time of their foundation most older schools were run by the established Church and were only open to boys of the same denomination. In practice however many such schools are highly academically selective and pupils usually need to pass the Common Entrance Examination before being admitted at all, and all but the best scholars must be able to afford the considerable fees for tuition and (for boarders) room and board.