Is the fear of children becoming attached to the maid justified, and what are the tips to avoid this, taking into account the nature of the maid's work and the mother's care for her children?

It is permissible for the maid to take care of the children and look after their cleanliness, food, drink, and all their needs, provided that she is trustworthy in religious, moral, and health aspects. However, it is preferable for the mother to care for her children herself due to the positive impact this has on them.