Whether compulsory residence in public high schools is legal or not needs to be judged according to specific circumstances.

According to the Compulsory Education Law of People's Republic of China (PRC), schools have the right to set up boarding schools as needed to ensure that students living in scattered places can attend school. But this rule does not force all students to live on campus. At the same time, according to the relevant provisions of the Education Law of the People's Republic of China, high schools have no right to force students to stay in school. Therefore, from a legal point of view, public high schools cannot force students to live on campus.

However, in reality, some public high schools may take measures of compulsory residence in order to facilitate management and improve students' performance. In this case, students and parents need to abide by the regulations of the school, otherwise they may face the risk of being expelled or dropped out of school.

To sum up, the legality of compulsory residence in public high schools needs to be judged according to specific circumstances. If the school does not have clear legal provisions or contractual agreements to force students to live on campus, then this practice may be illegal. Students and parents can protect their rights and interests by consulting lawyers or complaining to the education department.

Extended data:

Expanding the resources of public high schools is of great significance for improving the educational level and promoting economic development in China. In recent years, with the acceleration of urbanization and the increase of population, the scale of public high schools in China has been expanding, and the government's investment in public high schools has also been increasing.

First of all, the expansion of public high schools can provide more educational opportunities for students. With the intensification of urbanization and population mobility, many students are facing the problem of difficulty in enrolling. If public high schools can expand their scale and increase the enrollment quota, more students can receive high school education and increase the education popularization rate. At the same time, the enrollment expansion of public high schools can also provide students with more choices, so that they can choose their own schools and majors according to their own interests and specialties.

Secondly, the expansion of public high schools can improve the quality of education. With the increase of the number of students, if the school can provide better teachers, teaching equipment and educational environment, more students can enjoy high-quality educational resources. At the same time, the enrollment expansion of public high schools can also promote competition among schools and promote schools to continuously improve the quality of education and management.

Finally, the expansion of public high schools can promote economic development. With the improvement of education level, the comprehensive quality of students will be improved accordingly, which is of great significance to the future economic development. At the same time, the expansion of public high schools will also promote the development of related industries, such as construction and service industry, thus promoting the development of local economy.