Is there a GCSE in using a Pen?
The likes of RSA Typing and ECDL need to be taught in the class room as early as possible but not as 'IT' these should be taught in English.
I seem to recall doing a GCSE in English that was all about writing skills (Which I failed) and GCSE in English literature (Which I did much better in).
A GCSE in English needs to reflect the modern times, no one ever hand writes documents these days so just as English lessons used to test your ability to hand write they should now be testing your ability to produce the same documents on a computer. This should continue to be a core subject ever child needs to learn. English will still cover the reading, speaking, listening etc. that is does now.
A GCSE in 'IT' should be a specialist subject available as an option it will briefly touch on areas such as:
Basic Programming concepts using C
PC Components and tech support
The idea is not to teach them anything particularly useful but it should be enough inspire those few who are capable of taking it further (Just like all GCSE's). Not everyone will want to do it and in the end most people are crap at very technical stuff, this will never change.
I do feel it is important to teach if only as an awareness thing, it wasn't until a few years ago I discovered Information Security was a real topic you could just ask to study. I do wonder how the last 10 years would gone had I known then what I know now. (No one thought to tell the kid who spent lunch times hacking the school computers you are allowed to do that sort of thing for a living.)
Proper IT needs a damn good teacher to do it, the sort of personalities that do very well in IT can detect a fraud a mile away and it's very hard to teach if your class has no respect for you. I dropped out of A-Level computing because the teacher was an idiot in my eyes and this put me off the subject. After 5 years of wilderness I got back into Education and did BSc Computer Science & IT then an MSc in Information Security and had a lot of fun doing it.