I would say, the ability to understand, speak and write in a particular language comes, in most cases, from one’s effort, experiences and, I would dare to say, the audacity to deal with the reality he/she faces, not so much from what kind of career group one belongs to, or which geographical area of the world one comes from.  In another words, you can’t just state that, say, every high school senior in Singapore has better command of English in explaining the contents of high school curriculum than every Korean college professor, even though we recognize what one does can affect one’s command of language.

I can guess what you tried to say in your writing, but still, your reasoning can bring about a lot of misunderstanding and the question why it matters. ^^

Let’s just not limit or block human ability by a certain categorizing.  Regardless of what you do, where you live, and what kind of people you deal with, you can still excel the other group of people and, in the same respect, you could be beaten by another.  There are a great many living counterexamples that would argue against the reasoning that judges and ranks, as you did, people’s language development in line with a certain categorizing.

I just wonder why do you think or imagine all of these things? any reason?

Are you thinking like that  in many ways?

Wow! you are genius.

영어 댓글이 아니라서 죄송하고요...

우리나라 국어과 교수가 정치학이나 경제학에 관한.. 아님 공학에 관한 설명을 유창하게 할 수 있을까요?

우리나라 언어를 연수하는 교수인데도 거의 불가능하지요.

음... 이따금 박경철씨나 안철수 교수님 같은 분들도 계시지만.. 하지만 이 분들은 자신의 학부에서의 전공분야 못지 않게 지금의 분야을 매진했기에 가능했던 것이죠.

하다못해 일선 고등학교의 과학 교사가 다른 과목을 가르칠 수 없잖아요.

때문에 각 분야마다 전문가가 필요한 듯..

영어도 그렇지 않을까요? 지금 우리 아이들이 배우고 있는 영어는 특정 전문 분야를 향한 것이 아니라

보편적인 수준일 것이라 생각됩니다.

자신의 꿈을 이루기 위한 수준의 영어는 그들의 노력에 의해 가능해 지겠죠.