In the last century or two, a man usually got himself a wife - not just for children - but also for consistent sex and companionship. Certainly for the bottom 80% SMV guys. For the upper 20% SMV guys getting consistent sex and companionship was easier but not certain.

Now with the abundance of social media, dating apps/tinder, and hook up culture... even a good chunk of the 80%-ers can get consistent sex and companionship more readily available. For the top 20%-ers it's a no brainer.

Which means that the main purpose of marriage now has really been reduced to having children?