The brain doesn’t learn information by rote and then save it somewhere. Instead, it organises knowledge.
As bad as mistakes can be, we do not seem to possess an in-built fear of them. This implies that the brain does not punish itself for an error. It is only when we are socialized that a mistake is something bad that we develop a fear of doing something wrong. This is exactly what our adaptable brain doesn’t need. Because whoever is afraid of making a bad decision will never find the right one. Or, what’s worse, will be too afraid to ever act at all.