But if you look at it from the point of view of an individual, then rejecting heirs because they are expensive to raise is simply absurd. Then everything that this person has earned in his life will go to no one knows who. So he ended up earning money not even for his own children, but essentially for other people's children. Isn't that silly?
I don't think it's silly.
Just like the content I watch on Instagram "Plan A: Married by 28, have kids by 30, Plan B: Be That Cool Uncle".
I'm more happier to see my nephew or someone else kids appreciate my small gift instead of living with someone who can't be grateful even I've give 80% of my money and keep pushing to earn more, it's more or less like living in hell.
I think you have wrong perspective on children. Why would your child be grateful that you spend all money on him, if he dont understand what money and be grateful are until he hits some age? There are things you do in life, but nobody say you thank you for doing them, and I know that you dont stop doing them because of that. If you want to talk from money perspective, than children are like investment with expecting something in exchange or profit. Seems silly, but then food also is silly and absurd waste of money, as we eat, food is being digested, and we are hungry again. What a waste of money.