A U.S. Census report estimates that just 43.5 percent of custodial parents get the full amount of support they're entitled to. And more than 30 percent don't receive anything at all.

In 2017, the average amount of child support received by custodial parents from their noncustodial counterparts stood at 3,431 U.S. dollars

Among mothers, divorce increased poverty differences due to both higher risk and greater vulnerability of the lower educated. Among fathers, divorce was unrelated to poverty.

Hardly a financial windfall.