I totally get the better-for-the-kids argument, but I think there's some nuance people gloss over. My dad's Portuguese is fluent but still has quirks to this d

I totally get the better-for-the-kids argument, but I think there's some nuance people gloss over. My dad's Portuguese is fluent but still has quirks to this day. Obviously picking it up from school works. But my paternal grandma never learned Portuguese and her husband died young (car crash). She never developed a social circle after that, which meant her health deteriorated slowly over time (since she'd just stay home all the time) and she ended up dying isolated in a elderly home, even though she was surrounded by people. On my mother's side, my grandparents immigrated to be farmers, so my mom had a lot of siblings. They developed a quirky pidgin where sentences - especially when more advanced vocabulary was involved - mixed Portuguese and Japanese. This speaks to limitations of learning a language exclusively in a familial setting: some topics just never come up, especially considering age-appropriate subject matter. I think the educational and social-outside-home components are extremely important to learning a language - most of what I remember from Japanese comes from spaced repetition from nihongakkou (Japanese school) or self study.