I think this is a question for the market to decide, we all know we are in a free market economy and anyone is free to create his own coin. I still have my reservation on National cryptocurrency, if Central banks get this wrong especially China, it may be the start of their economy collapse.
Of course the market is going to decide the answer, I certainly wasn't suggesting we somehow attempt to limited the number of coins
I am just curious as to other peoples opinions as to what they think that market decision will be.
I fully believe that if a country attempts to create a new crypto currency for their national currency they will stuff it up and it will fail as well, but I think its plausible one may try.
I think it would work well if done right, but I just know they wouldn't be able to help themselves but do something silly like keep themselves in control of the coin emission rate, add high transfer fees that go not to the miners, but to their own national wallet (for "taxes" to "maintain the system" of course... not because of greed), add in some kind of "centralization" to allow them to confiscate wallets and send the contents to their own national wallet (because, terrorists) and things like that. Im sure one or more of those would get in.