Becouse you need dollars in the central bank too buy dollars And You need dollars I the central banks too sustenance of the currency Mean that I you don't hav

Becouse you need dollars in the central bank too buy dollars And You need dollars I the central banks too sustenance of the currency Mean that I you don't have dollars too sustenance of the currency you also don't have dollars to buy, but people can produce crypto, meaning that the country can sell it.