countries will never allow decentralized currencies to circulate. This is nonsense.
this is not the first time someone comes who speaks completely with clarity of confidence without even bothering to google it at least a little. There are well-known examples with New Zealand and Ohio, where they have long been allowed to even pay taxes in decentralized cryptocurrencies (which could be even more legal for the state ?!)
different states allow cryptocurrencies to be circulated, and some even rush to manage implementing them before others in order to be the first to get the advantages that they can offer.