From the manual: <T15> Students must be accompanied by an Adult. No Student may attend a VIQC event without a responsible Adult supervising them. The Adult must obey all rules and be careful to not violate student-centered policies, but must be present at the event in the case of an emergency.
If I am a coach of multiple teams may I serve as the adult for multiple teams?
Also, may the supervising adult also serve as a volunteer at the event? Teams are often asked to provide a volunteer but for a small team it might not be possible to get multiple adults for the team to a tournament. If one adult, i.e. a parent, can both serve as the supervising adult and help volunteer (e.g. field reset, queuing, etc.) that would help to ensure staffing for tournaments.
My sense is that this would depend on additional factors, such as the age. My middle school students seem to be totally capable of guiding themselves at a tournament. Parents of my high school VRC teams are particularly concerned that they need to be in attendance the entire time when I am present and their older students are not needed them.