Simple:
Love of wisdom Love of questioning reality Why does anything exist?
How do we know anything for certain?
What is the point of life?
If God exists, who created God?
What is the color red?
What makes mathematics true?
If I turn my back on the moon, does it still exist?
Why does war happen?
Even... What is philosophy?
Etc.
Every kid will understand such questions. So philosophy is simply the serious pursuit of such questions.

It's not so much that they figure out how to. They are forced into it by outside tribal domination and warfare.
Once there are too many tribes in one region, resources get scarce and warfare ensues.

Are you talking about bats or humans?
How convenient that the purpose of every creature in the universe is to suit your survival agenda.
That's God we're talking about. You devil

This situation might sound pretty weird and even wrong , but I am really starting to get bothered by it, so much that seems hard to move forward in life, Can't focus on career unless i get it fixed.
My story should be pretty common, Immigrated to west ,but born and raised with Indian culture (which is dysfunctional culture if u have to live in west for your grown up life). Parents pressures and expectations lead me into married life (at 25) and also have a 2 year old now. 
Everything's great within the relationship and I don't have any issues staying the rest of my life with this person. BUT lack of experience with girls and almost virgin life before arranged marriage has really screwed up my thought processess. I know how i can fix it, by practicing pickup (just for personal development reasons) for a short time. 
But being Married isn't helping at all. Getting a 6 month break would help me fix myself, but I'm sure things won't be ever same then, what do I do? Any ideas?

Insight comes from constant questioning and a desire to understand.
All insight comes from the intelligence of the universe.
Recall a time when you had an insight about how something in life worked. There you go.