While jailing non-paying parents—the vast majority of them men—does lead to payment in many cases, critics say that it unfairly penalizes poor and unemployed parents who have no ability to pay, even though federal law stipulates that they must have “willfully” violated a court order before being incarcerated. They compare the plight of such parents to the poor people consigned to infamous “debtors’ prisons” before such institutions were outlawed in the early 1800s.

