You can avoid mainstream society when you live in Australia. I recalled that when I was in university, except for using English in the classes in university and doing homework, I still used Cantonese most of the time. The people who I knew were either international students from Hong Kong or immigrants from Hong Kong. I rent Hong Kong TV dramas in the Sunnybank for watching TV, and the news I read was from Hong Kong’s online newspapers. When I was young, I only had to see a Cantonese-speaking doctor for minor illnesses. So there is no need to contact the mainstream society. But, of course, I still know some small things, such as bus and train schedules are very sparse, I need to watch the timetable to wait for the bus and chase the bus when I was late. That was already my most profound understanding when I was just an international student
