Creating (festival) events is a lot of work. and a lot of it is adding the same values in multiple events.

It would be very nice if you could opt in to take some values from its parent event.

A festival has a location, but if that festival is spanning multiple days then you create extra events for each day. but the location of that day event is the same as the location for the general festival.

Or if you then have your day events, it will have a few stage events. those stage events are on the same date as the festival day event. so it could inherit the date event.

Ideally a user could just opt in to inherit from the parent, if the value in the parent would change, it should also change in the children as well. this will keep everything in sync and organized.