1. Equality before the law is a judicial principle, not a legislative principle. The judicial principle means the equality of law application, so it cannot be explained that the provisions of administrative law deviate from this principle.

2. From the legal point of view, the different treatment of different subjects is precisely the embodiment of substantive fairness and substantive equality. The law protects everyone's employment rights equally in the abstract sense, but in fact, individual differences and the special needs of employment positions need different treatment. Of course, it is debatable to say that civil servants are 35 years old.

I don't study the constitution. For the professional discussion on constitutional equality, please refer to the relevant articles and works of Professor Zhou Wei of Sichuan University (part-time professor of Western School of Political Science and Administration). The first case of constitutional equality in China (about height discrimination) was also brought under his impetus.