Yeah, largely as a result of their one-child policy, the cost of raising a child in China has gone through the roof. People poured everything into getting the very best for their child (and grandparents did the same).

My definite impression is that most new couples in China are worrying about how they'll afford one child, not debating whether or not to have a third.

This also seems to support the idea that as fertility tolerates drop, per capita resource consumption rises to meet a more modern lifestyle.

It might not be feasible for China to get to 3 kids per couple, but it points out there's a natural tension between governments that want population growth for economic reasons and a need to reduce population growth (if there aren't major technological breakthroughs that reduce the pressure of overpopulations).