For many species, having offspring is a no-op. The Luna moth literally has no mouth (and I'm not sure if it must scream, either), so when it procreates, it creates yet more offspring that also have no mouths. The moth does not do anything while it exists beyond procreating, as there is nothing it can do; in other words, it existing is simply a no-op, in the computer science sense.

Therefore, even if procreating is our only purpose, we can still ponder what the point of doing so actually is. Since we are intellectual beings, we can decide whether it's a logical decision or not, so that we don't end up no-ops either. I've seen friends and family members where kids are born to teen parents, who then have kids as teens, who then have kids as teens, and so on. Those are the equivalent of the moths, those teens have not had the chance to grow and achieve more, they were simply procreating to procreate, and they could not get out of poverty as their entire life was only dedicated to sustenance. Personally, their lives were very sad to me.

Finally, do not fall for the fallacy of appealing to nature, as just because something is natural does not mean it is moral. Many animals will forcefully mate with one another or eat their prey alive, that does not mean that humans must do the same. So too for procreation.

https://en.wikipedia.org/wiki/Appeal_to_nature

Good feedback! my reply is mainly calling out your "pride and accomplishment" claim as the only other reason to have kids.

I agree that there are plenty of reasons to not have kids. and also that plenty of people probably shouldn't have kids from a moral calculus; though importantly it's not our calculus to dictate.

In any case i still say that having kids for the sake of humanity is a Just reason to have kids. Problems and all. Humanity is basically a huge injection of problems and chaos. What else are we going to do.

Not everyone is as primitive.