I thought we debate about the timing to give birth, no? :)

I agree to the notion to give birth at young age.  Most of the teenagers are however immature and unstable emotionally, mentally, and financially.  They are probably still dependants of some adults.  My first one was born when my wife was 24.  The kid was planned and we were well-prepared.  I believe age 22-36 is the proper age range for women to bear child. 

Life is short, there is no time to regret.  Seeking perfection is merely a human nature.

Btw, it is $250k per child.  It is quite a huge obstacle to be surmounted for parents starting from teens.