The concern, I think, is less about problems during the YE ride, but the concern that pedophiles might use the ride as an excuse to meet the child outside the bounds of the program. Grooming behavior, it's called.
I'm personally just tired of handing out personal information for random companies to do what they want with it. I got fired as president of the Airport Advisory Board member at my home field when they instituted a requirement for a criminal background check. The unpaid advisory job didn't give me access to any facilities, materials, or records, but they sent me a release form for a state cop investigation. I said "The heck with you" (or words to that effect) and got canned.
The mayor, after that, always looked at me a bit leerily. About a year after that, the recurring investigation for my top secret clearance came due at work, and the government investigators came calling to my neighbors and co-workers. Sent one to talk to the mayor. THAT probably got him wondering.....
Ron "Question Authority (and the authorities will question you)" Wanttaja