It means that children must learn the basic knowledge of senior grades before they can learn the Olympic Mathematics. However, this will take up other hobbies of children.
Or other subjects. It is not good for children's all-round development.
As long as you learn the olympiad well in your grade, you are at least ahead of your classmates in the same grade.
The future is of little use. But to think. The improvement of thinking ability. It does have a considerable impact. After all, many solutions can be developed. Not only in mathematics, but more importantly, it will naturally be used in real life in the future.