anyone please tell me, are there other countries that have created their own crypto besides Venezuela and Japan?
I've heard about Russia's own coin few years ago but that was a scam and there's also a statement that India has it but that's all a claim to hype those coins that they are promoting.
I think it's interesting, maybe we better call it a national cryptocurrency.
We can it that way.
do we need it for the future?
I don't think so, they have fiat already so if ever they will come to cryptocurrencies and they'll control that coin it won't be decentralized.
and what is the important role of cryptocurrencies created by the state?
Not sure about this but it's either they've figured out that they can take advantage of it and make another source of income.