Bitcoin has a similar issue with the telephone. Quite useful, except when almost nobody else has one. If they make a passable CBDC legal, and the rest illegal, what will the masses do?
This is why an "offline blockhain" triumphs, one that is not just p2p but does not require "internet". In all countries I have seen, Internet access is an "Achilles' heel" of BTC.
I believe we agreed earlier that an "offline blockchain", while obviously potentially a great idea, is impractical at best, quite possibly impossible to implement, did we not?
Yes we did - but ! Re-imagine the BlockChain concept, completely offline. A sequence of transactions, can be pruned to the latest 'signed' transactions, redeemable by signers.