That does make me ponder if we will realize a scarcity of the production of new  humans in our own lives. We either invest upfront in kids, or you invest in bitcoin and leave the family behind. 

So even if you end up with a big stack, in a decreasing population-world paying a younger healthier Real Human to take care of us as we age may become very, very expensive. 

So I'm just not sure how dreams of wealth in a world with a decreasing population work out.