Disadvantages: utilitarianism, indoctrination and lack of inspiration, which makes it difficult to guide students to have interest in learning. Especially in small places, social practice and hands-on operation ability are often ignored, and even students are prevented from gaining enough experience and extracurricular knowledge. It is unfavorable to the education of teenagers and may have a bad influence on the future society.
Advantages: utilitarian, purposeful and indoctrinating learning, with students' enthusiasm, is more efficient and can learn more knowledge. And because students in China have long classes, they can avoid a lot of tuition fees.
The above is just my personal opinion, for reference only, and I hope it will help you.