I wonder if it isn't 100x more effective for the baby that they don't learn from language per se, they learn from direct feedback.
They try to duplicate/imitate others, but generally they get immediate feedback (to the point where it's becomes annoying) about exactly what they're doing/alternatives/...
I've always found that this works, but adults often don't like it. Learning from direct feedback, having someone immediately check your work, so to speak, helps enormously. Even if it's in text (I learned C++ on IRC and mailing lists, for example). The books help, but you never have any direction.
They try to duplicate/imitate others, but generally they get immediate feedback (to the point where it's becomes annoying) about exactly what they're doing/alternatives/...
I've always found that this works, but adults often don't like it. Learning from direct feedback, having someone immediately check your work, so to speak, helps enormously. Even if it's in text (I learned C++ on IRC and mailing lists, for example). The books help, but you never have any direction.