Indeed, the only truly serious questions are ones that even a child can formulate. Only the most naive of questions are truly serious. They are the questions with no answers. A question with no answer is a barrier that cannot be breached. In other words, it is questions with no answers that set the limit of human possibilities, describe the boundaries of human existence.
The old school of thought would have you believe that you'd be a fool to take on nature without arming yourself with every conceivable measure of safety and comfort under the sun. But that isn't what being in nature is all about. Rather, it's about feeling free, unbounded, shedding the distractions and barriers of our civilization not bringing them with us.