And I know many children who were 8 years old when they moved from E”Y to the USA that they totally forgot all of their Hebrew and only spoke in proper English. A shanda! Misken!
It happens to everyone, Jews and non-Jews.. You just pick up what’s around you being immersed in a language. I’m sure the Chinese parents were horrified that their children refused to speak Chinese at home when they came back from school daily.