The men in those primitive societies have little interest in the children up to a certain age and don't really know who their kids really are or care for that matter.
IMO We are devolving and heading in that direction. I see this cultural milieu mostly in the inner cities but it is spreading.
From the 1926 article linked to in post 34. Think Romneycare/Obamacare was bad? Leave it to a feminist to come up with this, how about “Kollontaicare”: marriage insurance. It sounds a whole lot like the libtard mantra of the “it takes a village...” bs.
“Madama Kollontai, Russia’s foremost feminist leader and first woman ambassador (to Norway), offered an interesting contribution to this discussion. She opposed the bill because she did not think women could collect alimony, especially if their husbands had two families. She was against registration and altogether in favor of free love. As a solution for the vexing problem of children she suggested a scheme of ‘marriage insurance,’ to be financed by an annual levy of one dollar on every adult citizen of the Soviet Union. This would provide a fund of about sixty million dollars a year, enough to provide for all the babies who might be born as a result of free-love unions. She also remarked that, although the present-day Russian youth is accused of dissipation and loose living, it is often forgotten that prostitution has largely disappeared. (In this connection there is a widespread saying that amateurs spoil the profession.)”
In the culture you are describing, the men eventually do take an interest. That is not so in America’s inner cities.