Well... Let's say that OP sounds like it may be oversimplifying a wee bit. The Replication Crisis already came for this one. (And yes, you should be skeptical o

Well... Let's say that OP sounds like it may be oversimplifying a wee bit. The Replication Crisis already came for this one. (And yes, you should be skeptical of any claim to cognitive benefits.) https://en.wikipedia.org/wiki/Cognitive_effects_of_multilingualism https://en.wikipedia.org/wiki/Cognitive_effects_of_multiling... https://www.psychologytoday.com/us/blog/life-bilingual/201906/the-bilingual-advantage-three-years-later https://www.psychologytoday.com/us/blog/life-bilingual/20190... https://www.newyorker.com/science/maria-konnikova/bilingual-advantage-aging-brain https://www.newyorker.com/science/maria-konnikova/bilingual-... https://www.theatlantic.com/science/archive/2016/02/the-battle-over-bilingualism/462114/ https://www.theatlantic.com/science/archive/2016/02/the-batt... https://www.semanticscholar.org/paper/The-Relationship-of-Bilingualism-Compared-to-to-the-Mukadam-Sommerlad/ab592074393404527863ab1f6bfd02e616133daa https://www.semanticscholar.org/paper/The-Relationship-of-Bi... https://psyarxiv.com/gjh95/ https://psyarxiv.com/gjh95/