You make excellent points
@Pjotr - alas I think I'm too far from home already to turn back without giving it a pretty fair crack.
That said, my normal modus operandi is to do copious amounts of research before jumping into something and in doing that with a view to starting home brewing I have to say it's really odd that the kit makers (as most folks have had some experience with home brewing and I'd say generally it's a negative one with the very cheap result not comparing well to commercial offerings).
Now you'd think that the kit makers e.g Coopers would REALLY do everything they could to ensure that whoever buys their kits would get as good a result from them as possible but now I've a bit of an idea about what best practice etc I can see they're really setting folks up to make very poor tasting beer. e.g all their home starter kits come with a can of Lager extract (which is far trickier to do properly than an ale), brewing temp recommendations on the cans are always well above the professional & HB community agreed levels (~12c for lager, ~18c for ales), only 7g of yeast - which results in significant underpitching & opens up multiple potential issues (infection, stall), recommendations to remove from primary fermenter after gravity the same on 2 consecutive days (generally regarded as fraught with issues and too general as advice), often confusing references to using sugar etc etc etc.
Scary thing is every guy who makes ordinary home brew ends up sharing it with a bunch of his mates and all of them drink it but think,"Ah it's kinda ordinary" and doesn't bother to try himself as he figures it's not worth the effort.
Anyway it's an odd thing as all the hopped extract makers are equally to blame - the Coopers website is excellent and much closer to giving bang on advice but like many others I've encountered MANY a bad home brew and thus had a strong preconception about the quality of beer that can be made (without going nuts about it) but I'm know lead to believe that if you do the PROPER basics right there's a very good quality of result that compares much more favourably with commercial efforts.
Haha big talk eh?