Ans.01. Why do you believe, what you believe?
When did you start believing what you believe?
02. Were you born into your religion?
Did you choose your religion later in life?
03. The "boy in the box" -I have read about "which is a good idea, just not practical.
If it could be though, and the boy was never taught anything about any god then which god would He choose? Why?
01. When you are born into any society, you "first" try to copy the beliefs of your parents. This is the initial phase. But when you grow up and meet different people and study books, you get extra info and then your "family taught" beliefs gets diluted.
When people get to adulthood, they choose different paths for themselves. This is very common, otherwise every one would be following exactly the path of their parents.
02. I was born into a Muslim family, but as I grew older and I studied Islam, my faith grew stronger and I do not argue on the basis because I was born as a Muslim.
I speak with reason and logic. There are many who were born into Muslim family but they do not follow Islam.
And there are many who were born into Non Muslim families and then accepted Islam. I have compiled responses from some of them as to why they accepted islam.
03. If you put a boy in isolation, he will never believe in any of the idols and shapes and Trinity and God becoming a Human etc.
He will believe in a shapeless God that is Creator of this Universe. People who have studied the lives of tribes living in jungles isolated from other humans have come to the same conclusion.