A lot of places are doing Office Studies in practice, though I considered it myself once (I have an MCTS, the modern equivalent of MCSD), more for the Certified Traniner qualification that you get if you pass MOS and have QTS ; I have an old book for the 2003 version you can borrow if you want. TBH, I would think the level of accuracy required is probably beyond a lot of GCSE level pupils at Y11, let alone Y9. It's also very very Microsoft Office centric (unsurprisingly), this isn't necessarily a criticism but you end up teaching Ctrl-X F4 moves the Tabs rather than generic things. There are also questions of how much ; there are four or five packages and a couple of levels of each qualification. They aren't cheap, and they have to be taken at authorised testing centres. Microsoft also have serious concerns about their exams being too easy, and as such have seriously raised the bar ; the MCTS is much harder than the old MCAD for example. ; and about people drill and practicing the tests. I suspect most of those 'thinking' about it haven't really looked at it in depth.