Before we start the discussion, we should first define what "leftover men" and "leftover women" are. So-called leftover men and women refer to those who don't have a partner or can't find one. Of course, we need to set an age limit for such people. Personally, I think that in China, 30+ is a relatively appropriate age. Of course, there may be some controversy about this, but this is not the focus of the discussion. It also needs to be stated that this article defines leftover men and women as those who are in good health, have legitimate jobs, and are unmarried. Divorcees, prisoners, people with long-term chronic illnesses, economically disadvantaged individuals, those with special preferences, and disabled persons are not included in the scope of this discussion.