The OP's prospective rules.. my response is that of a complete newbie, interested in possibly getting an allotment if I can do reasonably well growing stuff in my garden, and in need of encouragement. The rules look so strict to me, that they would put me off. As a newbie, I *will* be making mistakes. I would be looking to get encouragement and advice, not a telling off for any mistakes I make.
A nearby town has some new allotments. They are *pristine* They are filled with lovely new expensive sheds. What look like many an expensive raised bed, and many a gleaming 4x4 is parked up. I wouldn't want an allotment there. I'd feel completely intimidated. In my mind (and as a newbie I am willing to be told I'm completely out of my tree), allotments are supposed to be for 'ordinary' people to grow their own food, so this means much making-do, reusing, improvisation, recycling... learning from the experienced folk who will hopefully encourage a willing newbie (of any age) rather than make him or her feel as if they are waiting to pounce on any and all errors in a way as to criticise rather than as an opportunity to learn.
If an allotment is being left to go to rack & ruin, then by all means, the holder should lose the lot, but are allotments meant to be run like a pre-war holiday camp, with set things done at set times and woe betide anyone who fails to turn up every weekend.
Probably that's not what you'd be wanting to make anyone feel like, but *as a newbie* that's what it sounds like to me: off-putting.
Difficult job getting it right - I don't envy you that task - and credit to you for trying.