What does this link have to do with anything, it says he is an Australian-American mathematician originally from HK. Not sure how this works that smoothly to demonstrate your point.
Just to clarify, his parents were from Hong Kong. Terrence was born, raised, and schooled in Adelaide, Australia. He completed his Bachelors and Masters at Flinders University by the age of 16.
As clarified by handspun Terry was born, raised, educated here in Australia - largely homeschooled he had support from the Australian public school and university system which did at the time a pretty decent job of lifting young talent, he was part of the same undergrad math club group that had Paul Erdos visiting that spawned a few crypto punks, cosmologists, math professors, etc.