For newly-elected Ordeal candidates, there is plenty of adult supervision. As an Ordeal candidate, you are kept separate in multiple groups (clans) from all other attendees from the time you arrive on Friday evening until after dinner Saturday evening, so even if someone else from your unit came with, they likely wouldn’t see you for most of that time anyway. After completion of the activities on Saturday evening, you may, depending on the weekend schedule, retire for the evening and come for breakfast on Sunday morning before heading home or, if the weekend is concluding on Saturday, head home them.