If you are somewhere from the western countries, than learning an asian language can be a very good idea. I personally learned English, german, spanish, would be nice to know some asian language too, but do not feel the strength, that I can do it, seems to be very difficult to me with these different characters, but very useful indeed.
Lol, those countries you mentioned have their own languages and they dont speak Chinese. Apart from English the next language we should learn should be French. There are lots of countries that speaks French, because French colonized a lot of countries even in Africa. After French you can then talk about Chinese, then Japanese and Spanish.