Personally, I think it was inappropriate of a Dive Guide to bring a 10-year-old that deep. Are you certain that they went that deep?
I wasn't there nor did I see any profile info. We ran into each at the pool during some confined training. He stopped by and was talking about his dives and how fantastic they were in Hawaii. He said they had hired a private DM that treated them "like royalty" and it was a great experience. In the discussion he mentioned that he couldn't believe how deep they went and that he looked at his computer and they were at 76 feet. Other than that, I really don't know any details. Another DM and I talked to him about the reasons for the 40 foot limit and such but that was the end of the discussion. For this post, I was interested to see what others have seen as the norm. I have two jow divers and definitely keep them to standards depths... Thanks for posting!