I would respectfully disagree with the above, and here is why:
As has been mentioned, the purpose of a DSD, Try Scuba, whatever name you give it, is to make money. As a scuba facility owner, I'm supposed to think they are a tool that "hooks" prospective students into signing up for OW classes. Based on conversion percentages, it doesn't work very well. AdivngBel's experience is more an aberration than it is a common outcome. What we see more often is a person checking off one more bucket list item. Once they've done that Try Scuba, they've been scuba diving...in our case, in 14 feet of crystal clear confined water.
This entire thread makes me want to gather our company brain trust together and, once again, determine if we want to drop Try Scubas altogether. I can't even imagine conducting one in an open water environment. Ever.
The only thing that makes me cringe any more than DSD is the infamous Resort Course, which is, once again, only designed to make money. I either hear how horribly wrong things went--normally in a large group on a cattle boat--or that someone "already knows how to dive" as a result of a RC. I've heard from people who have done five of them which, most often, would have more than paid for an OW class and their personal gear.
We're straying a bit from the original premise and the gut-wrenching loss of a child's life but, like jzipfel, I believe in going to the root of the problem. If we never did DSD's, this would never have happened.
The blame for this Scout's death sits squarely upon us as an industry and a is sad comment on greed over reason. We should all be ashamed and, in respect for the family and the very short life of a child, we should man/woman up, look deep inside and consider the consequences of our actions.
Finger-pointing and blame won't ever resolve what happened but, if we do what's right, we can perhaps prevent it from happening again.
My opinion only, I'm sure there are those who disagree, but it's how I feel.