Why do you implicitly assume that mating behavior is determined by culture, rather than vice versa? Humans had mating strategies long before we had language, let alone anything resembling modern societies. A priori is seems a lot more plausible that human cultures evolve to fit our natural behaviors, or perhaps that mating behaviors and traditional cultures co-evolved for long enough to become inextricable.
Humanity has lived in cities for around 10,000 years. Evolutionarily a blip—we’ve been Homo Sapiens for 200,000 years. 10,000 years is long enough for simple, useful evolution (such as the spread of a gene for digesting milk). Not enough for complex behaviors, especially with a huge transnational interbreeding population tending to stir up genes and cause “regression toward the mean”.
Why do you implicitly assume that mating behavior is determined by culture, rather than vice versa? Humans had mating strategies long before we had language, let alone anything resembling modern societies. A priori is seems a lot more plausible that human cultures evolve to fit our natural behaviors, or perhaps that mating behaviors and traditional cultures co-evolved for long enough to become inextricable.
Because families that moved between societies don’t retain some kind of genetic memory of the rituals used by their ancestors.
Humanity has lived in cities for around 10,000 years. Evolutionarily a blip—we’ve been Homo Sapiens for 200,000 years. 10,000 years is long enough for simple, useful evolution (such as the spread of a gene for digesting milk). Not enough for complex behaviors, especially with a huge transnational interbreeding population tending to stir up genes and cause “regression toward the mean”.