From Face[t]s of First Language Loss, by Sandra G. Kouritzin (Routledge, 1999), pp. 162-163:
Born in Korea, Hana Kim came with her parents on a temporary overseas assignment to Canada when she was 4 years old. Because they were planning to return to Korea in 3 years, her parents did not expect the children to speak Korean, but instead let them “do what came naturally” (June 20th, 1995, p. 1), going to English playschool, watching TV, and speaking English at home. At the end of 3 years when her parents had decided to immigrate, Hana Kim was still able to speak Korean, but she began losing it when she was in Grade 2. By the time she was 11 years old and they returned to Korea for a visit, she was almost unable to communicate. She returned again when she was 17 years old, and was able to understand some basic things, but was unable to say what she wanted to say. Oddly enough, Hana Kim returned to Korea once again when she was in her late 20s, and, at that time, many of her relatives commented that her Korean had improved. She mused that,
“I think as I’ve gotten older—I think maybe I’m concentrating more, and I understand how the language works more, because you’re more mature, and I think that’s allowing me to speak it a bit better.” (June 20th, 1995, p. 2)
Yet, accustomed to being a very articulate speaker (Hana Kim works as a television broadcaster and anchorwoman), she felt frustrated by her inability to communicate her ideas and comments. She was also frustrated that people in Korea would “see that you’ve got a Korean face” and then “they kind of expect you to be able to speak Korean too. If you’re White it doesn’t matter; they don’t have those expectations, you know” (June 30th, 1995, p. 7).
Even were she to still speak Korean, Hana Kim would likely have become a broadcaster. As a child in Korea, she used to mimic the broadcasters on the radio from the time she began to talk. On the other hand, she also feels that growing up speaking English to parents who couldn’t speak the language also contributed to her choice of profession because she had to learn to speak slowly, deliberately, and carefully, and to constantly evaluate the difficulty of her vocabulary. She therefore didn’t have to change her speech habits in order to train as a news reporter.