If by reading or learning you mean also out playing football.
Or Video Games.
Whatever! Your parents then, who ignited your interest in knowledge. The events that surrounded your life which lead to your better understanding of that subject. Parents are pretty much what defines your standard of life, naturally they play a huge role in what you learn and how much better you are as a human being.
Even discarting those factors, high school standards are so low. From my experience all I had to do was be coherent at writing sentences and putting the key terms in there. Like I said, it's not really comparable.
Talent isn't a thing. Sorry, but it isn't. I don't believe in it.
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