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The vicious circle starts when there is poverty that does not allow to get education and therefore there is a perpetuation of poverty. The president of Salvador (as any good president would) is trying to break this circle by attacking the poverty but he should also attack the ignorance at the same time, if possible, because we would encounter himself swimming against the stream otherwise. The vicious circles are quite hard to break at a personal level, ever harder at a nationwide level.
Yes, I understand that it is not a trivial problem to educate a society of an entire state so they can get better understanding of economy and crypto. But to adopt bitcoin we IMO have no other ways as any crypto solutions are still not so easy to use. To get all benefits crypto can give and not to lose crypto user should get enough economic knowledge. It is hard but it is the only way, IMHO.