We have an economic system that is actively hostile to new generations because the idea behind neoclassical economics is that you have an endowment you turn into money to buy things, but that very endowment isn't passed onto younger generations in a guaranteed fashion due to rising inequality.
As a member of the younger generations you notice that everything is owned by the older generations, which means you have to beg the older generations to let you live in dignity.
But this doesn't end once the younger generations turn into the older generations, because their parents also suffered the same problem, which means they might have enough for themselves, but they didn't have enough to pass down for you, leading to a spiral of immiseration.
Smart parents notice this pattern and decide "If I was unwanted and my children are or will be unwanted, then how about I don't have any at all?"
As a member of the younger generations you notice that everything is owned by the older generations, which means you have to beg the older generations to let you live in dignity.
But this doesn't end once the younger generations turn into the older generations, because their parents also suffered the same problem, which means they might have enough for themselves, but they didn't have enough to pass down for you, leading to a spiral of immiseration.
Smart parents notice this pattern and decide "If I was unwanted and my children are or will be unwanted, then how about I don't have any at all?"