Teejay,
I agree with your friend. I believe that a religious upbringing is not essential to producing a healthy, well-adjusted adult. In fact, I believe that some religions produce quite the opposite.
When I see what JWs do to their children, even though I realize that their intentions are good, I wish there were laws protecting children from being subjected to damaging religious beliefs. In the realm of religion, children are still viewed pretty much as property. At the same time, I understand how controversial it would be for a government to decide which religions are healthy and which are not.
As I said, I do not want to indoctrinate my son; I want to educate him. I am thinking specifically of the Continuum of Influence chart from the Ethics of Influence site:
http://www.workingpsychology.com/ethics2.html
I want him to eventually decide for himself what he believes, with as much information as possible. Meanwhile, I'd like him to know what people are talking about when they mention Adam and Eve, Noah, the Flood, etc.
I usually work Sundays, but if I didn't, I would do as your friend does and take him to different churches, synagogues, mosques, and temples. Before I began working Sundays, we usually attended the Unitarian Universalist Church, which presents material from many diverse sources. I think a person can also feed this spiritual hunger by simply looking up at the stars, meditating, listening to good music, dancing, hugging, laughing, reading, etc.
So far, he is a kind little boy with a wicked sense of humor. I feel very lucky because besides loving him as my son, I also enjoy his company as a human being.
Ginny