A、He will experience feelings of failure. B、He will experience states of worry. C、He will lose his natural enthusiasm for life.

In bringing up children, every parent watches eagerly the child’s learning each new skill: the first spoken words, the first independent steps, or the beginning of reading and writing. It is often tempting to hurry the child beyond his natural learning rate, but this can set up dangerous feelings of failure and states of worry in the child. This might happen at any stage. Oh the other hand, though, if a child is left alone too much, or without any learning opportunities, he will lose his natural enthusiasm for life and his desire to find out new things for himself.
  Parents vary greatly in their degree of strictness towards their children. Some may be especially strict in money matters. Others are strict in coming home at night or for meals on time.
  As regards the development of moral standards in the growing child consistency is very important in parental teaching. To forbid a thing one day and excuse it the next is no foundation for morality. Also, parents should realize that "example is better than principles". If they are not honest and do not practice what they advise, their children may grow confused, and emotionally insecure when they grow old enough to think for themselves, and realize they have been fooled.