There’s an age-old myth that says full-grown adults can’t become fluent in a second language. And lately, the media has been pointing to a new study that seems to suggest as much, saying that the fluency age cutoff is around 18. But that’s just not true.
https://lifehacker.com/you-can-still-become-fluent-in-another-language-as-an-a-1826143526
* points out * published in the journal Cognition * says Elissa Newport