This ultimately leads to an increase in the pregnancy age in women, and that unlocks additional second-order effects. Having a first baby at 35 makes it more un

This ultimately leads to an increase in the pregnancy age in women, and that unlocks additional second-order effects. Having a first baby at 35 makes it more unlikely that the woman will want and be able to bear a second one. Attention to aging parents may also compete with the possibility for more children. The single child will be given more attention and will grow in a “dust-free” environment. This completes the whole cycle of the cultural shift towards egocentrism.