[Fr0ntBack]

I tend to be skeptical of claims that bilingualism improves any mental skill. The studies often fail to control for confounding variables correctly. See this article: http://www.theatlantic.com/science/archive/2016/02/the-battl...

[grok2]

It's likely the real reason is the very act of interacting with another culture improves your understanding of that culture and makes you more tolerant. Probably not specific to just learning the language, etc.

[ipnon]

The flips-side is that any significant interaction with another culture requires learning a language, so are they just two sides of the same coin?