Immigrants in history

My answer, you may not choose the best answer, but I still want to say:

Stop complaining, the problem of migrant workers' left-behind children didn't start in New China. It started as early as the late Qing Dynasty and Guangxu period, but at that time they all went abroad and their wives and children stayed at home. After settling abroad, I returned to China once every few years, and then I completely immigrated. The difference now is that you don't go abroad, you go to a big city, you go alone first, you have left-behind children, you mix, you take your wife and children, and big cities also have schools for children of migrant workers. You can buy a house and settle down if you succeed, but you can go back if you don't succeed. It's essentially the same.