Africa. Mun dat be wun big place wid lots of people and neary 50 countries wid people dat live in de jungle in de mud huts and eatin each other. Send de smoke signals and swing on de trees to get around de place. We don't have de munny, we do de trade wid beads and coconuts.
Funny as it may sound, even the most bckward countries in Africa have banks and ATMS and monetary systems. Whilst you won't exactly find an ATM at the bottom of every tree, nor on every street corner, Namibia is one of the more advanced ones, it used to be a German colony and then was administered by South Africa. It has an advanced and well regulated banking system. In fact they're a lot more used to dealing in forex than banks in the US, based on my miserable experiences when I worked in the US where the only foreign currency they'd heard of was Mexican Pesos and Canadian Dollars, and that was only within about 10 miles of the respective borders.
Oh yes, and they have their currency too, it's the Nambian Dollar and it worth the same as the South African Rand.