She probably has a less chance of getting a job when all her kids are at school due to less time of job experiences when spending time with her children
The Patriarchal social organization developed in both of these
If you didn’t score high enough, you can retake the exams. But too many retakes might affect the chance of getting in the school you chose. Some things that can boost your admission to that school would be if you got a high GPA (Grade Point Average), recommendation letters from your teachers, or after school clubs that you have committed into doing. Most of these takes years to develop though.
One reason it was developed was to give the Chinese the idea that the emperor was supreme and divine. The Egyptian Pharaoh had different gods and their own type of religion while the Chinese had the Buddha, but they both had their people work for the worship of their God/gods.