> And this is all assuming one correction per word which as much as humans are great learners seems like a very dubious assumption. I assume much less than one

> And this is all assuming one correction per word which as much as humans are great learners seems like a very dubious assumption. I assume much less than one correction per word. Corrections are to fix when the kids made a mistake when they mimic others, kids doesn't make mistakes for every word so you don't need to correct every word. As I said, bulk of learning is from mimicking, but they will make a lot of mistakes when mimicking so to become good they need corrections. When I see parents with kids I see them correcting their kids all the time, correcting misunderstandings or fixing pronunciations or grammar issues etc. You can notice that parents use a specific voice when they correct the pronunciation, and the kid gets that the parent tried to correct their pronunciation from it, that happens quite a lot with small kids. You don't say "this is how to pronounce X", our genes seem to encode a way to communicate pronunciation to others to help correct mistakes. Kids also correct each other in this way, which helps make the learning more robust even when adults aren't around. All humans has instincts to correct others so I don't think any culture fails to do this.