These are of course unreasonable. China's price and education departments do nothing. It's no use looking for them, but you can try. I don't know if anyone in China is in charge. The best time for children to read is 1.5 to 3 years old. It is ok to read about 2000, but you must not force it, otherwise it will have a great impact on the future. I don't recognize so much after this age.