U.S. economy adds 559,000 jobs in May, as the recovery shows signs of strength

[MichMan]

11. It is interconnected if childcare workers also aren't returning in sufficient numbers due to low pay

Thus making it hard for others to also return.

Of course, if the wages for childcare workers, (many whom receive low pay) were increased substantually like they should, it would likely cause the costs to increase and making it less affordable.