ever consider learning the language? you do realise you are talking about a language which most local uses right?
Cantonese? Not even the Mainlanders want to speak it. The CCP want to kill it. Besides which, its a difficult and unpleasant language, to learn, to speak, or to listen to. The world is not beating a path to the door of Cantonese, mo men tai. Why bother.
Incidentally I know many Chinese pilots working in Hong Kong who have limited Cantonese. I also remember the SCMP doing an article last year where they quizzed the locals in a park on their reading and writing skills, and found a shocking level of illiteracy in the written word.
No wonder. Its an unwieldy niche language. Eventually to RIP.