(V): "...a certain amount of living is required before certain aspects of Judaism can be taught. For to try to teach before hand would be like planting a seed in barren soil."

That is an excellent point. And it presupposes something else, that the first 40 years weren't spent in a stupor, but rather that the mind had been daily exercised through broad study and contemplation. One man I know says that trying to discuss politics with most of his fellow Americans is a fruitless endeavor. Before any meaningful discussion can take place, he first recommends they spend 20 years reading every book they can get their hands on, from every political persuasion, right, left, and center, and couple that with study of history, philosophy, theology, etc., just whatever is needed to get some kind of handle on the real world. Then perhaps an intelligent discussion that may lead somewhere constructive might ensue. Needless to say, most don't appreciate his recommendation. :o)