"If you see an article saying that you need to start learning a language before you’re 10 to become fluent, be assured that it’s simply lazy reporting. The truth is much more interesting and encouraging."
This Medium article explains how the science around adult language learning is often misinterpreted.
https://medium.com/@chacon/mit-scientists-prove-adults-learn-language-to-fluency-nearly-as-well-as-children-1de888d1d45f
