Clearly the Class or Caste system is real at birth.

If you are born poor or in a poor line you have to struggle to make it. If you complain people tell you to make yourself happy. So you have to work at being happy. Where the people In Authority have money and so they assume life is fine.

Therefore those in charge spend life happy and you the lower class have to scrape by and live lower and you have to shut up and not complain in order to be happy.

All the while more people are born into this system.