Chinese society is not simply stratified, but rather different backgrounds correspond to higher probabilities of following different paths. This is what is called "fate."

First, core family members within the system are naturally closer to power and resources, making it easier to pursue politics or enter large resource-based monopolistic industries.
Second, children of military compounds grow up in relatively simple and concentrated environments, meeting a diverse range of people and discussing a wide variety of topics, making it easier to enter expressive fields like arts, film, and writing.
Third, ordinary city and factory children mostly enter market-oriented industries, business, or technical positions; the paths are more open, but most have to carve out their own way.
Fourth, those with even fewer resources may pursue careers in sports, entertainment, or trending sectors, because these areas are relatively more "personal" and offer more opportunities for a comeback.
People are not born into layers; they are gradually sorted by their environment.
Different backgrounds do not determine who you are, but they are highly likely to influence which path you take.
Some are closer to power, some are better at expression, some adapt more easily to the market, and others can only rely on talent and luck.
It may seem like a difference in social circles, but in reality, it is a difference in resources and environment, which continues from generation to generation.