Well, it is just a theory. None of us were alive however many billions of years ago.
In that case though, how would you respond to the question: "Do you believe the Big Bang Theory is our current best explanation based on observable evidence for how the universe was created, though it could later be proven wrong?"
I would say, believing the evidence is incomplete is different from rejecting the theory.
Science should be taught in school, religion should be taught in Sunday school.