Then the women can decline to participate.
Tell me, how do you think you would feel the day your wife took another husband?
Don't have one, don't intend to have one. Tried that for 3.5 decades or half my life expectancy. Still don't know why.
By the time they are mature enough to realize they made a mistake, they have a couple of kids, a sixth grade education, and no friends in the outside world. :(