There are several languages like that over there with the "clicks". Very difficult.
And yet another thing "americans" don't really understand. Here, at least until lately we had one language and everyone spoke it. Same can be said of Oz. One real language. The "native" languages have been killed off for basically the same reasons.
In other parts of the world where the entire country is the size of a mid western state it is very different. Friend from south africa speaks 5 different languages....well. Just amazing to me. I try to learn from him, as well from some greek friends I have but the words just don't stick. I would love to have that ability.
Storytime:
Roughly 20 years ago I was in Florida visiting, in the hotel there was a couple from germany. A couple of us are around talking to them, and one of the kids say they would love to learn another language, german. The German man says, don't learn german, it is a dead language, learn spanish, that is what you need to know. You will use it more then any other language but english.