While this is good to see verified, and I absolutely think it is important to rigorously double-check whether things that "make sense" are actually true, it wou

While this is good to see verified, and I absolutely think it is important to rigorously double-check whether things that "make sense" are actually true, it would have been really surprising if this were not true. 1) immigrants often have language difficulties that their children do not 2) immigrants often have cultural knowledge difficulties that their children do not 3) immigrants often have moved to places (both country and place within country) for the exact reason that they believe their children will do better there But, again, just because it was predictable doesn't mean it wasn't a good idea to have rigorously verified that it is so.