Humans has really digested alot of information past stored with cultures and stories which has been part of us. Unknown to us, outdated datas and coverages has no space in today's world due to high technological advancement.
Unlearning will really help to flush misguided information out and think about the present and future. Unlearning as I see it cannot take hold in this generation as we are too blinded to see past the ancient times. Maybe the next generation can do well in this, if the curriculum is changed to the present.