That is because her father is 1/2 English and 1/2 Chinese. Her mother tongues are actually English and German because her mother is Czec/Austrian. She may have grown up in Hong Kong but judging from what she has admitted that she only speaks a little Cantonese, the local dialect in Hong Kong, she is not really an average Hong Kong Chinese.
She went to international schools in Hong Kong and she spoke English at home. Also she could get around in HK speaking English. She knows very little Chinese.
I think Prince Joachim married too young - he was only 26 years old. He wasn't mature enough to deal with marriage and children while still in his early thirties.
(En) Season Greetings from Asia Hong Kong, _Happy Mother's day_ 2024 May 12 To the noble honourable royal family princess *_Athena_* on my knees at your service with my deepest love & loyalty faithfully, from Louis Kwok Sze Wai