I understand your meaning, but for the young demographic to gain that experience, what wretchedness will we all have to go through?
George Santayana, a notable philosopher, coined the phrase, "Those who do not learn from history are doomed to repeat it."
A more thorough study of history would help us avoid having to relive the mistakes. That won't be enough. There is a clear divide between conservatives and liberals. Each sees history from a different point of view. When the balance of power falls to the group that chooses to ignore history, we have to learn the lessons through painful experience again.
We're on another "pain cycle" with Democrats in the House and Senate. The young were "educated" by the left who conveniently omitted teaching about the effects of having leftists in power. They are also omitting the horrific history of Islamic armies taking over the Middle East, northern Africa, Spain and parts of India. They omit the destruction of 30,000 Christian churches in the Middle East and Africa alone. They lionize the "offense" of "Islamophobia". They omit the offense to Jews and Christians over putting the Al Aqsa mosque on top of the temple mount. They omit the offense to Hindus to have Islamic mosques built on top of their religious structures in India. The bias is calculated. The consequences are predictable.