shame you think societal evolution is all there ever was to know about. Humanity has only ben in control of tomorrows last 7,000 years of context in every language used to communicate between generation gaps and other ancestries living in series parallel time within this species all practicing the same self deception every generation.
Your mind was made up for you, not by you. Here is the irony, either was your brain. I was the evolution to the nucleus of your fertilized cell staying with the chromosomes of your ancestral lineage.
Every reproduction has their own brain because of compounding chromosomes passed alone each generation 2 adults have children and their children grow up to become 1 of 2 parents or not. This algorithm is a universal result when it comes to plant or animal, predator or prey nature of each generation since inception until extinction.
Nurture isn't natural, nature is natural time adapting/evolving one of a kind now. Self evident process being one of a kind myself.