Depends on the IT guy, could need pythagoras in coding sometimes, who knows
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Also @EJXIII I think schools need to teach you a wider range of skills than youre likely to carry forward, firstly not everyone is set on their carreer path and even those that are a prone to changing their mind its also impossible for a school to offer services covering all the carreer paths of pupils and offering a course that unique for each pupil, so they need to offer skills and content preparing you for a wide range of carreer paths