Actually people do not believe in evolution because they have been led there by solid evidence.But some of them get involve on those kind of things or maybe we can say as Darwinian community.
And why the evolutionary theory is embraced by so many?
I mean..there has been massive campaign to flood the "intellectual market"with evolutionary propagandaPlus,Darwin himself popularized the evolution by his book as it was sold out(1,025 copies)the first day of its release.
Since most folks or maybe some people want to be thought as "educated" and as they have been led to believe that "all educated people believe in evolution",they have defected to Darwinian camp.And..they simply believe it is fact because "the scientist say so."
But..as notes..we should know that evolution is not a scientific law.Absolutely not!As it just a hypothesis that had been made by Darwin.Like what we do in school before do an experiment.And this theory involved in religious confusion,tangible evidence and also one of ways to escape from responsibility(more to atheist).
And about the Big Bang theory..I just can conclude that the theory is actually want to tell how the universe begins and not telling you that the Bigbang is actually the center of the universe.
And in my research..they say that the Big Bang did not involved any explosion.But it just some kind of development of the universe.And the development can be very fast(maybe faster that the speed of light) and there we were mistaken it as an explosion.