Kids ages 2-6 according to Piaget go through a period of preoperational thought, where they ask why all the time because they cannot yet think logically about the world around them. Their thought is egocentric and is rigid, limited to one aspect of a situation at a time, and strongly influenced by the way things appear at the moment (they lack object permanence). This is why everything is a question.
The philosopher Montaigne answers these skeptics in his writings, arguing against the stupidity these people exhibit when they question everything and refuse to accept anything as axiomatic truth at face value. These people will ask how can G-d exist if He can;t be seen, yet they’ll believe science, which claims that everything is made of atoms, even though you can’t observe an atom. (Atoms, like G-d, lehavdil, cannot be seen, yet we believe that they exist). This is why atheists are illogical and quite dumb.