In fact, most people in history will not leave offspring.

If you look at the genealogy charts of past dynasties, you will find that it is always the descendants of the nobles who branch out, and the small families at the end of the nobles gradually become civilians, rather than what everyone imagines: civilians give birth to children and continue to be civilians. (Otherwise, why would so many people have ancestors from famous families, because their ancestors were indeed rich.)

In fact, most civilians in history died of famine and war, or died of corvée and taxes before giving birth.

It is very counterintuitive that the offspring continuation model of our society is not linear, but overflows from the top.

Once you are exiled to the bottom, you are on the edge of danger and it is difficult to climb up by your own strength (unless it is a chaotic era, the beginning of the establishment of a new system, or you are very lucky).

And this has no essential connection with the social system. As long as the distribution of resources is uneven and wealth is hereditary, this top overflow continuation model will not change. This is especially true today.

So as a poor person, giving birth is to throw your child into the beginning of hell difficulty. The poorer, the more hell.

From the child's perspective, it doesn't matter if the child is a little stupid or numb, and his life will soon be over as a beast of burden. If the child is smart, that will be the beginning of his pain in this life.

Because he needs to spend his whole life to understand and eliminate this intergenerational injustice, and he may lose in the cruel social competition for various reasons not caused by himself.

From some perspectives, if you don't have children, at least you can concentrate limited resources on yourself, use these to gamble your life, or let yourself enjoy a high-quality life as much as possible in a limited time.

From the perspective of social responsibility, if you don't have children and I don't have children, there are rich people who have three children in four years and give birth to high-quality children. Human beings will never stop reproducing, and the automatic generational break at the bottom is just a clever program design.

Of course, you can say that human beings have come like this from generation to generation, there has never been fairness, and people live to endure injustice. But that was in the past. The education of freedom and equality in modern society has doomed our descendants to be unable to tolerate such injustice, and many of them will self-destruct.