I have enjoyed and learned from these comments and am conscious that "old timers" don't know everything. I have had my plot for 17years and have yet to get everything right
I think perhaps the key thing is to help if advise is sought otherwise hold your tougue after all has anybody tried growing sweetcorn 3" apart, it might work! Several years ago i insisted that beetroot couldn't be transplanted yet I do that to my thinnings and get decent beetroot out of them and i remember someone insisting that their goosberries must have been stripped by humans because no bird would touch them, now you dare not net them as magpies love them (one had to be untangeled from mine as the it fancied it could get through my slightly larger mesh that year