When will the college entrance examination stop having regional differences?

Never, otherwise Beijing and Shanghai will be crowded. Think about it, people in Beijing and Shanghai will definitely not want to move out and go to other provinces, right? Even if they finish college in other provinces, they still go back to find jobs. On the other hand, once foreign candidates enter universities in Beijing and Shanghai, everyone hopes to find jobs in Beijing and Shanghai after graduation. This is human nature. If the government can't solve this contradiction, it will be impossible to cancel the regional differences in the college entrance examination one day.