Belief can come and go. Belief is the effect that was caused by being convinced. It's good that someone is not automatically convince into believing in something. You shouldn't just believe in what you are told, that's what being a skeptic is. One should critically look at what is presented. But what's important is that one should not accept one thing because of not knowing and/or understanding the other. It's not a world of just black and white, sometimes there are more than just two options. It could be that "A" is true, "B" is true, both "A" and "B" are wrong, or both "A" and "B" are true. Remember that you are not necessarily wrong if do not believe in something, but you can be wrong if you do believe in something.
"A great challenge of life: Knowing enough to think you are right, but not knowing enough to know you are wrong."
- Neil Degrasse Tyson