as a pretender, i have to agree with this, i see on this forum the welth of info that the experts have. there are loads of situations that you lot would have no problems doing but i wouldnt even know where to start. i would leave these to the experts. i would consider myself fairly clued in on most trades but would never do anything i wasnt compident to do. if i dont know how to do something i will find out how to do it properly . i think the problem is that most people see someone doing something similar and think they are experts and can do it the very same. they dont understand the theory behind it.
most coarses only show the basics or the easy parts and at that they only skip over it. they only show the ideal situation and when someone goes out on site and realise the real situation you see ,they dont know how to get around those situations where that the books dont show(out of level walls,floors,out of square floors etc)