That's the whole point though, those people don't really exist. Basically everyone who does business internationally is, well, doing business internationally. Y

That's the whole point though, those people don't really exist. Basically everyone who does business internationally is, well, doing business internationally. You can either restrict your market to only people who hold your non-dollar currency, hold every currency in the world, or hold dollars. And keep in mind, everyone else holds dollars... This is sometimes referred to as the network effect.