Relationships are not inherently built on obligation to raise young. The irony is the mark of civilization is the most primal impulse. You aren't in high society unless you come from good breeding and have an heir. Note that this structure does inherently apply only to lords. It in short makes no sense for every office surf, paying the lord 45% of his crop for the right to work the land to play in the game of thrones, as it were. There are no thrones for you. It speaks to the duly inherent nature of reproductive cues that women are fighting to be headed by one of those thrones (and proves Christianity right on that topic while we're at it).

So what do surfs do? What they do do and always have done. What you are having trouble assimilating into your schema as per the fact you are purposefully sheltered from them by your lord parents. They have relationships. Sometimes they stay together forever, sometimes not. Sometimes it's all about sex, sometimes it's all about comfort and companionship. It can be anything they want it to be. There is alot of very hard work it takes to fit into high society and what you're calling MGTOW, which includes women, are those not in it. This becomes an issue like Roman Goths and Jesus because they don't follow your rules so you don't know how to deal with them as per your rules. A program would say "does not compute."

People who don't spend every waking hour trying to buy a house and come to your garden party have, at least the opportunity, to have equally if not more fulfilling relationships without the burden of keeping up appearances. However, I have seen the odd woman who, after some time needs the titles and the structure of the 'appearances.' The legal, religious, and social 'headship' of a 'covered' male. Finding freedom oppressive.