
Originally Posted by
pineapple stu
I think this is very revisionist in that it's clearly not what you said you were showing. And your revised case - well, pretty much anyone good enough to be part of a squad getting to the Euro semi-finals is going to be in the category of "best players in the country" at the age of 16/17 - yet most of those didn't leave. Your conclusion at the end is lacking any sort of substance at all, and the case of Nicolai Boilesen even argues against it, in that he moved to Ajax at age 17 there, never really made it, and returned to Copenhagen at 24, where he's been a regular since. Maybe he'd have been better staying at home longer?
I did a study on the same data for Euro 2016 and again, the vast majority of players stayed at home until they were 21/22 - Ireland (and the North) were huge outliers in that regard. There may have been a bit of a change since, but not as big as you note, and there's also a shown correlation between players leaving their home country too early and lesser career outcomes; I've linked it in this thread before.
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