100% of them are born in Australia. When parents speak their mother tongue to them, they all answer in English. None of them can sing anything in their mother tongue and frankly no one likes it.
This is where I come in. My life has been benefit hugely being multi lingual. I am very big on multiculturalism and if you can speak in another language you are singing it too.
Being bilingual you see the world broadly. The world is your oyster. It’s never too late to learn. This is Nanaha singing Homura in Japanese. Well done darling.