FruitCider, you're arguing with yourself, mate.
I've yet to see a teacher here or IRL demanding 'gimme presents'. If you want the practice of giving gifts to teachers banned, petition your local school's governing body, MAT, whoever.
Not a single teacher on here has raised an objection to the doing away with of teacher gifts.
But don't expect me, as an individual teacher, not to respond politely when one of my students hands me a hand decorated mug (I own many mugs) full of praline chocolates (I'm spectacularly allergic).
I'm going to say thank you nicely, then later, quietly, share the chocs between my kids' stockings, & leave the mug in the orphan mug cupboard in the staffroom, where someone will someday be glad of it when theirs goes AWOL.
If I refused the gift, it would cause offence & upset. I'm not going to do that when one of my students is doing something nice & kind.
You need to push on the door of whole school policy, if this is something you feel so strongly about. & as I've repeatedly said, I'd agree with you on that one.
But if you're going to nuance your banning of gifts, that's your nice anecdote above buggered. How precisely are you going to quantify financial value? Home made craft animal ok. Pound shop mug not? Where do homemade biscuits fit in? Flour & sugar fine, but marzipan not allowed?
You're going to end up with something like a 'nothing over a fiver' rule.
Great, but then 6A want to club together & buy Mrs A a £100 gift so you're back where you started.
Probably best if you hadn't accepted that craft animal then...