The woman offers the man fruit. Maybe that's how our female ancestors enticed males to join them in caring for offspring: "I'll offer you food, and i… - Jordan Peterson

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The woman offers the man fruit. Maybe that's how our female ancestors enticed males to join them in caring for offspring: "I'll offer you food, and in response we're going to make a team. That's the deal." And that's the human deal. That's why we're more or less monogamous and why we more or less pair-bond, and why something approximating marriage is a human universal. You can find exceptions, but who cares? Look at the vast pattern.
The price we pay for having very large brains is that we're very dependent, and it takes a long time for us to get programmed, and because of that we need relatively stable family bonding, and that's basically what we've evolved. You don't get that without making males self-conscious. Why not impregnate and run? It's not "Why do men abandon their children?" that's the mystery. It's "Why do any men ever stick with them?" Just look at the animal kingdom. The simple and easiest thing is always the most likely thing to occur. It's the exception—the long-term commitment—that needs explanation.