We had a hospital stay before the birth, emergency c-section (the cord was around my son's neck), hospital stay after the birth, and about 2 weeks of him staying in the neonatal ICU. I think the bill came to around $30,000 (covered by insurance), and I think we paid a couple of $20 copays.
> And the leaving the house/car part I also don't follow.
Exponential? No, but I don't think anyone claimed that. But compared to a couple going out, a couple and a child takes several times more time to do each step. Everything takes more planning, and nothing is completely spontaneous.