<p>I would get a release from parents to allow you to get medical help if needed. Lots of things could go wrong where the kid will need a visit to the emergency room and without a signed consent the kid will have to wait (unless it’s life threatening) until a legal guardian arrives.</p>
<p>I travel with kids all the time (just got back from Jamaica) and find most of my nightmares are unfounded. Just the idea that they are having an adult accompany them says something positive about the kids who will be there; most post-prom events do not include adults!</p>