The problem is you cannot trust those who run the lottery, or the exams. People will cheat to get in, and they can be quite creative: https://www.bbc.com/news/

The problem is you cannot trust those who run the lottery, or the exams. People will cheat to get in, and they can be quite creative: https://www.bbc.com/news/world-asia-china-53316895 https://www.bbc.com/news/world-asia-china-53316895