Some people are actually undertaking this radically novel and risky procedure.
It appears that women say they can't find a suitable partner.
The reason for that, in turn, is that men are now in the minority in university, and young women (23 - 33) have higher yearly incomes on average than young men.
The few men whom women do find suitable are deluged with offers from women, and see no reason to commit to any one woman.
I could make all kinds of jokes about dating (mostly at my expense) with this, but to be a bit serious, I wonder if people know why they do things. Ultimately, what are children for?