Imagine that some respectable country would go far beyond legalizing cryptocurrency and start one of its own. It would surely be no scam and it would probably have a strong support, but would there be any drawbacks to the currency and the state itself? Would it get more attention than some of the biggest coins now?
I will not investing on a coin that is issued by a government because probably, it will just fail in the future since other people hates government taxes and they will not support a coin that is created by the government.