I'm amazed at what some people are posting about creche going children, I went to boarding school from the age of 10 - God only knows how that will be interpreted!
You took the words out of my mouth. I also had a stay at home mother, but went to full-time boarding school.
I am a big defender of our local creche, and will certainly send our next baby there too. Its been a revelation for our children, and they learn and develop far more than they would at home, no matter how much we all try our best. The syballus and daily activities they learn would put the best of us to shame if we were to organise it ourselves at home.
Children need the interaction with other children. You can't possibly give 12 hours per day interacting with the child, its just not possible. In the creche it is, for the 8-10hrs they are there.
One important point though: Sure, in bad creches, the children can only pick up the bad behaviour, but if you have a good one, its the way to go.