In my experience, everyone turns twelve when they disagree or are shown to be wrong. Very few have the temerity to accept their faults. Let's not throw stones lest they hit our own glass houses.
When people say you’re wrong it triggers cognitive dissonance and social threat brain stem stuff that had to be consciously mediated. Even if you’re someone who makes an effort to do this it can catch you off guard.
the answer is not to try and change human psychology, it's to reintroduce the hierarchies and structures where correction and judgement flows through the correct channels.
The most enlightening is to be repeatedly wrong about a subject. Most of those end realizing there is no actual data worthy of a conclusion. It suddenly becomes obvious that should have been the answer from the beginning.
Nothing changes in my life if the earth is flat or not. I'm so much not in a hurry finding the answer that I will probably never need to.