US housing costs are the single biggest factor preventing Americans from having all the kids they want — but is low birth rate really a bad problem?

American families are shrinking, and many cite the rising cost of housing as the primary reason why.

A new report by the Institute for Family Studies (IFS) points the finger squarely at the lack of affordable housing, with report co-author Lyman Stone telling Business Insider that, “It's the thing that everybody thinks about first, as soon as they're thinking about fertility.”

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