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Growth of cryptocurrencies will only frighten them. Why they are needed when all people start using crypto ?

True, but recently there's been some news that the government (or some company?) is coming up with its own crypto-currency called 'Laxmi coin'. So maybe, they can still exercise some control over crypto-currency?

Governments may issue some cryptocurrencies which are unlikely to be decentralised like most common cryptocurrencies now. Those will be centralised. It destroys the original philosophy behind bitcoin. We should discourage such movements. But they can never control truely decentralised cryptocurrencies, because it's decentralised by design. No one can stop it anytime.

Yeah that's the problem with their crypto-currency. It's almost still the same as fiat.