I'm thinking that's a theatre question, but due to the length of the show - I wouldn't recommend it.
True she will have to have adult. Since its say, 15 need to be accompanied
No, not alone. Persons under the age of 15 must be accompanied by an adult...at least for the current production of Cursed Child.
From the plays website "The show is suitable for ages 10 and up. All persons entering the theatre, regardless of age, must have a ticket. Babes-in-arms are not admitted to the auditorium. Please note that patrons under the age of 15 should be accompanied by an adult."
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