https://www.npr.org/2021/06/01/ [login to see] /a-daughters-journey-to-reclaim-her-heritage-language
Emily's father, Christopher Kwong, stopped speaking his first language — Mandarin Chinese — when he was five-years-old. Born in New York City in 1958, he struggled to communicate with his kindergarten teacher and classmates.
Emily's grandparents, Hui and Edgar Kwong, were worried he would fall behind. They stopped speaking Mandarin to Christopher at home, and dedicated themselves to teaching him English.
"I realized I had to engage in a different world, a world in English," Christopher Kwong says. "You have to integrate, otherwise you're going to be really in a terrible place."