We are choosing subjects for GCSE atm - well, dd is! They get 1 hr pw of RE, which the school has decided will lead to another GCSE (2x1.5 hr exams). This is a core subject choice.
Why do they have to do it? I know the Gov has deemed that state schools must teach 1hr of RE a week, OK. Why the mandatory GCSE at the end of it though? DD doesn't want to do it, doesn't think it will be helpful as it is focussed on Xianity (she isn't). If it covered religions of the world or ancient religions she'd be interested, particularly the latter (Aztecs, Egyptians, Romans etc).
My own view is that if she's doing the 2 years she may as well do the exam. I do still wonder why the school has made the exam mandatory.