Full-time childcare? Almost nothing.
Occasional childcare? A mother needs a break now and then, a day every week maybe, or two half-days in a week. Just time to do something for herself. It is important, though if there's a willing grandmother around, that is probably a better option than formal childcare.
What is good about childcare when your child is beginning to grow up?
No, I really do not want to go back a hundred years or so when women had a dozen children, worked very hard, and only rarely earned money outside the home.
But women should have a choice, and not one dictated by economic necessity.
And if you are thinking of returning to work merely in order to gain a few luxuries, think again. You are missing too much, and so are your children.