I disagree with actionspeak's comparison of an American child to an American employee. An employee may quit at any time and choose any employer that he wants, while a slave has no choice in masters and cannot leave his place of work. By definition, children are closer to slaves than employees at least.
You CANNOT know that God is real. The best that any can say is that they don't know either way. However, I'm confident enough to say that he's not just like I'm confident that I'm not about to explode.
Yes, we should seek to understand it. Even if we may never have a full answer.
It is absolutely vital to seek to understand all things around us. Are there more pressing matters demanding our time? Yes. However, it is still not a question so irrelevant that it should be abandoned.