Oh, tell me about it @livinguktaiwan! We're at a distinct disadvantage, growing up in English-speaking countries. Kudos to your parents for raising you to be bilingual though! Cantonese is a beautiful (and useful) language to know. And well done for persevering with mandarin whilst living in Taiwan! Can you still communicate in mandarin? Have you ever seen this Ted video? Find it very inspirational when it comes to language-learning in foreign countries.
It's true that the widespread use of English can sometimes hinder our motivation to learn new languages unless it's absolutely necessary. Like you, I've come to admire how most Europeans I know speak several languages - effortlessly, in some cases! Having said that, I'm sure you'll agree that having English as our mother tongue isn't a bad thing... it's a universally spoken language... I guess it's good to recognise our privilege in this regard. Nevertheless, I can't help but feel envious of the opportunities for skill development that come with being multilingual.
Ooh - if you had to choose to move again, where would you go??