[Dalewyn]

>Nope, learning multiple languages from the beginning has been shown to have many benefits.

More to the point: Speaking multiple languages expands your ability to express and describe everything, which leads to having more variety in your lines of thought. Different languages have different ways of thinking, thus speaking multiple languages nurtures an open mind.

Source: Me, native English and Japanese speaker.

[thequadehunter]

Same. I've immersed in Japanese for 10+ years and lived in the country. I grew up monolingual, and after that experience I felt like my brain "expanded". I think being able to understand concepts that didn't even exist to me before did that.

For example, I remember after finding out what "tsukkomi" and "boke" are in Manzai I started seeing it play itself out in English conversations with my friends. It's kind of weird seeing a concept play out that was there the whole time, but you re-shaped your thinking to observe and categorize it.