Many parents could say “why should my child be a thinker?” or “why should a child think efficiently?”. May be it would be best for other people to solve problems and be creative thinkers. May be a child should child go with the flow as many do.
Many parents are interested in raising self-sufficient and responsible individuals, able to succeed academically and in life. However, no many know the key to all above is creative problem-solving skill
Many would say why would you need to develop critical thinking or creative thinking skills of your child is most of tests are based on knowing fact and solving typical non-creative problem both in science and maths.