An average lifespan of the human being lasts 65 years. Where are you?
Every one of you spent a half an hour as a single cell.

Childhood is fleeting, but infancy is even more so.
Life begins, and so does your 65 year quest to die.
School is a mandatory procedure for at least 18 years. In school, you learn trivial things that give you a common intellegence to share with your fellow man.
Of course, there are exceptions, such as the mentally challenged and those who are advanced.

We are'nt that different from our distant ancestors, the thrill of primal urges fulfilled still consumes every part of us.

Once you've been through enough "education" (most of which is a wholesome way to kill your time), you may gain currency while taking orders from those more successful.
Childbearing is next.
To continue your lineage, find a healthy attractive mate and produce as many children as possible within young to middle adulthood.
Scientifically children and babies are aesthetically pleasing to us. Its what we call "cute" and "irresistable". Without the large eyes, the innocense, and the occasional babbaling, we would'nt want to burden ourselves by raising what begin as "parasites".
Why else do we make children?
Reproduction is caused by one of two things only; manic emotions taking the best of us, and mistakes.
Teen pregnancy is no different, yet the more modernized society is, the higher the age of a taboo pregnancy is.
Since most fathers (no matter what age) have much less of a desire to be with children, women make up most of the "enterprise".
Your children will do the same thing you did, no matter what happens.
It won't matter if Junior becomes a nobel prize winner or a homeless shell-shocked street rat.
You will all end up venturing into the unknown.
Our mind is constantly quelling the fear of what we don't know, and self help books tell us to "ignore our fears so as not to give them power".
Here, take this pill every morning and come back in a month.