In Belarus, at the state level, this topic was discussed more than once in order to legalize the crypto-currency market itself. The truth is nothing really has changed. It is too early to say that the crypto market will replace or at least be close to the state market. Again, many in secret from the government engaged in cryptocurrency and black way withdraw cash
Ukraine also has the facts that cryptocurrency was used to withdraw money. But I think that all the same, over time, it will be accepted by the world and become part of world economics but exactly not replace it.