how do you think the number of coins is restricted in each country?
If there's no law of ruling on that country about this matter then there's no restriction on how many coins that can flow in that country.
I mean if in every country there is a provision to limit the number of new coins that will be made, so that the amount of coins can be controlled, such as state money if the more money then the value is weaker, so the amount of money should be restricted.
It's crypto and it's decentralized, some countries aren't concerned about any other coins but they are more concerned only with the biggest coins like bitcoin.