Jean-Jacques Rousseau said this quote

“ Children are taught to look down on their nurses (nannies), to treat them as mere servants. When their task is completed the child is withdrawn or the nurse is dismissed. Her visits to her foster-child are discouraged by a cold reception. After a few years the child never sees her again. The mother expects to take her place, and to repair by her cruelty the results of her own neglect. But she is greatly mistaken; she is making an ungrateful foster-child, not an affectionate son; she is teaching him ingratitude, and she is preparing him to despise at a later day the mother who bore him, as he now despises his nurse. ”