If we are truly to understand the world, our place in it, and give meaning to our lives, we must have a solid foundation to understand how the world works.
The Scientific Method is the process that allows us to understand what we know and what we don’t know, and, more importantly, change our beliefs based on new evidence as it appears.
That final point is crucial.
I don’t currently subscribe to a religion or believe in any god. However, if there was irrefutable proof that a god did exist — if he revealed himself to the world — then I would change my opinion.
So, there is a logical chain of assumptions and understandings that any modern person must pursue.
When you have this understanding, you start to look at the majority of the world as quite strange in their beliefs.