Maybe it will be convenient for someone, for example, those who travel often. But I don't quite understand how you remove the limits on international transfers. As far as I know, according to the law, even if you have money in a foreign account or e-wallet, the government can consider it subject to reporting and taxes. Which means there are some limits. In addition, I am confused by the transaction fee. First, there will be a fee for transferring to bitcoin, then another fee for transferring back. I read on https://dashdevs.com/blog/cards-vs-account-to-account-payments/ that if you use another method, you can avoid the fee altogether. It seems that if you use a2a payments, this simplifies the situation and you don't even need to have a card.