Because it is more difficult for Guangdong province to enter the national key universities, because the number of national key universities in Guangdong province is small and the enrollment is small. The enrollment of key universities in other provinces in Guangdong Province is even less. Tsinghua and Peking University only have 40-50 Guangdong students a year.
Even if it is difficult to get into local public universities, such as Guangdong University of Technology, Shenzhen University and Guangzhou University, students from Guangdong Province try their best to squeeze into public universities.