I’ve read a couple of anthropology books this summer. Notably “Our kind”. anthropologists study our cousins chimpanzés, bonobos and gorillas to try understanding early hominids. The answer is simply NO! From what understand, we collaborate but taking care of offspring and having one female not really. However the biggest winner is the female chimp that trick males to provide her things, notably big game meat. She often use that punani to it. I am married have a wife and kid but if when single I was smashing a woman in a foreign country and knowingly bust a nut, I can take a flight the next day without a problem. I feel no obligation at all. I am married because of ancestral cultural reasons. What is promoted today in couples is not what was promoted 100 years ago, what was standard 100 years ago wasn’t 1000 years ago now imagine at 10 000 BC.