The opening ceremony and graduation ceremony are the two most important moments for students; moreover, there are related ceremony scenes in your game PV. 

I think there are two ways to achieve this:

1. Utilize the lecture theaters. In the schedule of lecture theaters, in addition to the movie event option, a "Ceremony" event option can also be opened; besides, the number of participants in the ceremony is related to the seating, not limited to 12 people. The cost is about 5000; however, as a return for this event, the school can gain higher reputation and attract more incoming students.
2. Set such events in the new DLC. Set up a dance department or drama department, where the professional classrooms of these subjects are theaters that can seat many people. Ceremony events can be held here.

Love this idea!

Brilliant idea! Would LOVE this

Great idea :)