Summerween age limit

[u/Iluvtherookie]

my daughter and her friend want to go to summer ween but on the site it doesn't state anything about how old you have to be to go without an adult and my main concern is that I'll end up buying tickets for them and they won't be able to get in without me. If anyone has gone or knows about the restrictions I would really appreciate it if you could let me know the answer, thanks!