Re: Almost no education
"I've been trying to teach 13 to 15 yr olds computers on a one on one basis (to earn some cash) and not one has known anything technical learnt from school."
Selection bias could be at work here - if they learn it at school they're not your target market. But, depressingly, you're probably right.
The root problem - what's the intersect between teachers and elReg readers and what's the probability of finding a member of it in any given school?