Short term is fine~~

I know some friends in the states let their parents bring their kids back to china. The kids lived in China for about six month before the grandparents brought them back to US.
Isn't it true that for infants the most important is to let them feel love and care. I don't think the infants can get more love or care staying with nanny or in the daycare.
I do agree that kids should stay with the parents once they reach 2.