Conservative estimates in the United States puts it at $300,000 to raise a child from 0-18, including the cost of birth in the healthcare system. It goes up to $1 million for a HCOL area though.
This seems wrong to me on multiple different levels.
One, this conversation is about economy side of things.
And two, calling comparison between humans and LLMs disgusting when LLMs are borderline GAIs sounds very xenophobic. Did you see the thread about LLM-written fiction contest the other day? https://news.ycombinator.com/item?id=48782890