Good point. My eldest son was playing football in HS and one of the high schools had ENORMOUS kids on their team. They were older kids, recruited from inner-city schools. Our high school protested the game, but nothing was done about it. It was like HS kids playing against college kids.
But I don't know if I would use that scenario in terms of the Chinese immigrants coming into our school systems and achieving though they were 2 to 3 years older than their classmantes.
My brother teaches 4th grade and at the beginning of the year received a Chinese student (a little older than his kids). This child spoke no English. (That's another problem for another thread) She entered a race where the other students were far ahead. Yet, she worked hard on her language skills, her school work, etc. While she didn't lead the pack at the end of the year, she had almost caught up with them. Why? Because she worked hard. That's achievement and it should be recognized. At least in my opinion. :>)