I'm of mixed race, chinese + Malay. My family and I speak Malay at home and my siblings & I are not exposed to any chinese language but we all do understand when one talks Mandarin to us but for us to speak the language was difficult. We only know how to speak little. Was told during my sch time that it will be difficult for us to transition between English & Malay to Chinese as Mother Tongue so our parents made us stick to Malay as MT. And funny thing is our youngest sibling has a han yu pinyin name in her I/C except for the rest of us 🤷🏻♀️
But for kids that age, their memory is very good so you try to to make him learn the language little by little.
Anonymous