Mandarin is the language spoken by the most people in the world as a first language, being spoken by 70% of China's population.
Nevertheless there are many other languages spoken in China, some related to mandarin, and others not. Most don't even have a standard writing system.
Anyway, what I want to know is, how easy is it for a speaker of one chinese dialect, say mandarin, to learn another, say cantonese?
I can speak (and read and write) a little mandarin, and wonder whether it wouldn't take much extra effort to learn cantonese or fukienese, or whether it would be just as easy/difficult to learn a completely unrelated language...?
Has anyone tried this?