careerism. the returns to delaying family formation in terms of income nave never been greater . The ROI of careerism needs to fall for this to change.
From my perspective, it's the instability of the world. From market crashes to pandemics and now politics, I have no clue what kind of world I'm bringing new life into, so it gets deprioritized severely. It's something like the Maslow hierarchy of needs, and having a child is at the very top.