Children must be aged 16 or under at time of event to qualify for a Child rate ticket. Children Under 7 can come in FREE with a paying adult, but does not include autographs from the actors attending the event.
If autographs are required then they must buy a Child Ticket.
Children aged 15 and 16 can attend without an adult as long as they have written permission from their parents or guardian.
Hotels may have a policy on children staying in bedrooms alone so it is best to contact them directly and find out if children can stay in a room without an adult.