Paper currency must no longer be accepted as local legal tender (excl foreign currency exchange, ofc), officially and in common practice.
The change can be to metal, hard plastic, digital, barter, or whatnot. Notably, plastic "paper" does not count: it cannot be a change to different soft foldable sheets, no matter the underlying material.
Resolves YES if a country newly makes such a change (after creation date: Sept 9, 2023), or NO after close.
@Ramble no, if paper dollars are still considered legal tender for everyday transactions in that country, that doesn't qualify. foreign currency exchange, blackmarket transactions, multi-currency banking, etc., are to be expected in any circumstance so they don't affect this. what is the official currency of the country, and what is the de facto currency in the country? (I'd ask the second in cases of some countries where they have an official currency but another currency, i.e. the US dollar, is still used more regularly than it in everyday transactions) if the country makes a change such that both do not have a paper-based form, this resolves YES.
(basically, it's a little more strict than what you suggest)
@Stralor thanks for the question. I've added to the description:
officially and in common practice.