[zozin]

This is akin to language learning. A child can take foreign language courses from kindergarten through high school (~20 years), but in the end they will only learn a stilted academic version of that language. They would be better off spending a single year fully immersed in that foreign country, learning the actual language and associated culture, with all its idiosyncrasies and subtleties.

Anything short of full immersion with actual human-to-human interaction is doomed to be a lesser than alternative.