It's historically somewhat common for older, more established and financially secure men to pair up with young women.

It does seem like a good practical/pragmatic approach to raising a family.

Women are still people who can have mental health issues; the solution of "just waiting until you're 40" isn't viable for 50% of the population.

Freezing eggs at 18-22 y/o should be the norm. Especially in rich areas such as LA and NYC.

Gives women options.

The earlier you freeze them the more you can get with a single procedure

My wife spent over $35k getting her eggs frozen when she was younger and we never even ended up using them (despite waiting till she was 38 to get pregnant). I guess having them around gave her some peace of mind, but that's a hefty price tag for someone in their early 20s, even in a "rich area" ¯\_(ツ)_/¯

The 40 years old man marrying young girl were business transactions.

The normal coupling differences were much smaller typically. (Like 6 years or something).

All marriages are/were to varying extents. I would go so far as to say that being able to "pencil out as a sensible business transaction" is a key element of most/all longstanding marriages.

Being the 40yo guy marrying the 20yo girl is like being the 40yo guy daily driving a Ferrari. Sure there are some pretty big downsides in the practicality department but you're rich enough to paper that over (this sentence is specifically crafted to apply to both parties).

That's a technical problem that will improve with time and has been actively improving for decades.

It also won't be long before we have artificial wombs and can create embryos more expressively than the current 1 male 1 female demands of nature.

I see a future where one waits even several hundred years and dozens of careers and lifestyles before choosing to combine their genes and memes with others to spawn and raise a new consciousness, maybe even committing to a hundred years to raise it.