There are strict laws and regulations surrounding the protection of children in theatres and film and broadcasting studios. The laws require that under-16s are protected at all times and supervised by suitably qualified chaperones. “Suitably qualified” means licensed through the local education authority.
However, there is a grey area with regards to children who are in the audience during a show. Do they need to be chaperoned in the same way? As I say, it’s a grey area. However, there’s no question that the children taking part in the actual filimg or live broadcasting absolutely should fall under the regulations’ protection.
In the context of serious allegations which have been made in recent days and weeks, the implementation of the regulations come under serious scrutiny.