Earlier quoted context omitted.
And with our medical system, children are like a reverse lottery ticket (to borrow a term I saw elsewhere on HN) - if they're born with a medical issue, they may take millions in care - something I've seen personally happen to coworkers. I've got enough anxiety trying to maintain my own health insurance.
couples with two generous 6 figures salaries are not generally the people worried about unexpected huge medical expenses - they have good jobs, and good insurance.
It's merely one factor among many, I'm sure, but don't the results, ever decreasing fertility, speak for themselves?