Ask Mr. Qian Fan about the gap between primary education in Hongkou District and Xuhui District.
Primary schools are difficult to quantify. Both districts are public and relatively private. Your last point is completely wrong. There are many poor schools in Xuhui, especially in South Xuhui outside Central. Many schools are inferior to Minhang. Therefore, compared with the three centers, the four centers can be divided into half a catty, which is convenient.