Harping on people to get married from up in the ivory tower fails to engage with reality of life in the dating trenches.
The current assumptions and expectations that society has about monogamy and commitment are insane. The idea that one person should meet all of your social, relationship and sexual needs is insane. Especially for those people who consider being attracted / look at other people / looking at porn to someone else as cheating. Like you don’t stop feeling physical attraction or even get crushes if you are committed. You just don’t do anything that violate other peoples trust.
The queer communities take on monogamy and commitment that does have any assumptions is really the best method going forward. Not to mention the removal of gender expectations for house work etc. Its exactly like you described it. An on-going discussion about what your commitment means and what is and isn’t allowed. It priories the relationship over everything else.
I think one of the biggest issues everyone glosses over is … we change during our lifetimes.
We are not the same person in our 20s, our 30s, our 40s for all kinds of reasons … our work, our situations, events in our lives, trauma, biological changes, genetics or just psychological changes. Some people stay the same sexually and stay the same throughout their lives, whether its being straight, bi, gay or anything else … I know some people who changed over time from being straight, to bi, to gay or to just asexual … in one way to another. I’m sure everyone know people like this. It’s human nature, most people are not born a simple being that stays the same forever, we evolve and change sometimes because we want to, we have to and other times against our will and biology.
So to have an ever changing pair of people living together … we should not expect them to stay the same forever and want to be together indefinitely.
But the inverse is also true too … maybe the two 20 year olds accept one another but change when they’re 30 … and now the 30 year olds now accept each other at this age … and on and on.