How old does your acting guardian have to be, 18 right?
Pretty much. Teenagers can be signed into their own care, however - though they, not the convention, are responsible for themselves should this happen.
Is there a limit to how many people you can be a guardian to? I am taking a bunch of friends with me on the last day and I want to make sure it'll be okay if my mom is the guardian for all of them.
We strongly recommend against a guardian having several hundred charges, and even 3 or 4 dozen might be overdoing it. But within reason, yes, that should be quite alright.
So if you are 14+ your guardian just has to be present at the convention, right? Not constantly over your shoulder?
An accurate statement.
PezCat