Children owe their parents and extended family nothing, as they had no choice being brought into the world. What they do with their life is entirely their choosing. Not everyone considers children joyful, but instead a burdensome, unnecessary obligation they can opt out of in nations with strong human rights protections. There is a difference between suicide as a species and an individual voluntarily choosing to not reproduce (for economic, lifestyle, or other reasons).

Life is lived and enjoyed, not owed.

I assume these differences in views are cultural, and will continue to drift as cohorts age in and age out of the populace.