I'm really jealous of how many foreign languages are offered at GCSE level. Foreign language instruction here in the USA pales in comparison to that of the UK. I mean, even as a native English speaker, I would've loved the opportunity to take GCSE Manx or Tamil or something exotic. If such a language is your native one then more power to you; I'd want to learn more about it too. And anyone who judges you according to that is just a jealous monoglot or, even worse, a xenophobe.