Let us talk about children and their upbringing right from birth. Immediately after birth, the child is tender. There is also no way to communicate. So, all experience and expert advice is used to take care of the child.
Now the child is over 6 months old. Still he cannot express his problemss, but he would cry if he is uncomfortable for whatsoever reason, and the parents have to ascertain what exactly is troubling him, and take remedial action. The only relief for parents is that they have started understanding some of his reasons for crying.
And this cycle continues and can be seen in every family, generation after generation. One can visualize that the parental duties cover wide spectrum of life as we know, and one must accept that he or she is an agent of god to discharge such duties honestly. After all the birth of a child in a family is the sweetest gift of creation/god bestowed on you.