[Theoria]

Nothing surprising. On a slightly different note, Singapore, China, Korea etc do have world beating children in terms of test scores. However, the US usually does better at the finish line, later in life. Achievements early, are not an end point.

[Eleutheria5]

School them there, then come back home for the end point.

[Freee-dame]

The USA may have the better highly creative and inventive people later in life but I would be very surprised if the average American achieved more than the average South Korean.