Why does LAM Raymond speak Cantonese so well?

Hong Kong people all speak Cantonese.

Correct 2L's

LAM Raymond's native place is Xiamen. She came to Hong Kong at the age of 2 to study in kindergartens and primary schools. She is the only school in Hong Kong that teaches in Mandarin, so Mandarin is also very good.

She studied in Xiamen University as a sophomore and went to the University of California to study in the city of Mandarin, Cantonese, English and Minnan.