Fixed term marriages are becoming popular in Australia and other places and have historical precedents. It is likely a lifelong term of marriage may be unrealistic with our comparative ease of survival.
It sounds horribly complicated. How do assets and dependents get treated? How does a will work? An inheritance?
Eg You marry for 5 years, and at 4.9 a relative leaves an inheritance. The executors get to work at 5.1 years. Where does the money go?
Maybe I’m overthinking it.
https://topnews.in/how-about-fixedterm-marital-contract-rene...
I don’t recall the exact numbers but even just considering how many sexual partners people have can drastically change average likelihood of eventually divorce - with virgin couples above 80% AFAIK (some overlap with religious communities likely). Even a few decades ago when survival was still pretty easy marriage had higher success rates.
The culture probably has a lot more to do with the rate of successful marriages than our safety or lifespan