The biggest joke of a country coin is what the hell is the average person is Spain going to do with any coins they receive? They can't go to a store and use them. They are worthless to the average person. The only thing they are good for is to exchange them for BTC and then they would need to change the BTC into their local currency. So all that would do is drive down the price since when a mom needs milk for the child they will take anything they can get since it was just giving to them free. That is if any were given away at all.
There are systems in production that will be released soon so vendors and merchants can jump on board and accept btc, ltc and alt crypto out of the box. They would be electronic payments, this is the way of the future. Instant payments with no pending transactions and transparency. TBH, the dollar itself can be backed by cryptocurrency since its backed by literally nothing. With Crypto you actually have machines doing work converting energy(kW to currency) so it actually has something to show for. Fiat is arbitrarily given a value. We dont want this to happen though, we want this to be the universal way of spending and we want it to stay decentralised.
Also, yes the people of Spain need to be more informed of there coin.