Anyone ages 13-18 need a signed form to attend the con, (doesnt matter if your staying at a hotel or not, its for the con) having your parent give someone going with you to the con who's over 18 to be your guardain. My instance, Im 16. My dad gave permission to my 21 year old sister to be my guardian while there. Your guardian must be in the building somewhere.
But when it is after curfew hours, you have to be with them at all times.
If you are under 13, you have to be with your guardain at all times no matter if its before or after curfew. So if I was like 12, my dad would give my sister permission to watch me, Except I would have to go wherever she went.