In some countries domestic bank to bank payments are instant and either free or very cheap. South Korea where I am is one. Bank transfers take perhaps one secon

In some countries domestic bank to bank payments are instant and either free or very cheap. South Korea where I am is one. Bank transfers take perhaps one second. International bank-to-bank payments are more of a hassle. There is no Stripe in Korea yet, though they seem to have success in Japan, the land of cash-only.