Childcare is expensive, difficult to find, unavailable for shift workers (who are likely to really need it), and gets dumped on grandparents (who may not want or be able to do it easily). But if someone becomes a sahm, they are called a sponger on society, bad example for their kids, not feminist etc. Society can't have it both ways - either it wants women to be back in the workplace, paying tax, or it doesn't!
Heavily subsidised, good childcare would, as said by a pp, protect those children with shitty parents and help produce adults who in turn make positive contributions to society and maybe not turn into shitty parents themselves. It would be an investment in our future society.
The truth is that as much as some posters resent any accommodation for children, we need them - every time you see a doctor, go to a shop, call a plumber, it's someone else's choice to have children which means those services are available!
It's really short sighted to say only the rich can procreate and the rich would soon change their minds on this when they realise there's no one to wipe their arse in the old people's home, or worse, Waitrose has run out of courgettes because there's no one to grow them!