It's a fair point, I was trying to come up with a concise way to refute "but it would also be hugely beneficial for the children's development!" because I'm not sure that's entirely true. There's nothing I've seen saying that, everything else staying the same, a parent at home is massively more beneficial than a child in daycare. The most important thing is parental involvement, and that can be done with or without daycare. A stay-at-home parent who doesn't engage their child is just as bad as two working parents who do the same.