Sims 4: Get to School Expansion Pack

A little confused about:

*Dance/Prom* (Valedictorian level 3, but in the last 30 days before aging up to young adult)
Sim players with sim teens in the 3rd valedictorian track may manage and participate in a party for the seniors, but they must be in their last 30 days before aging up)

I play with aging off, if I want my sims to grow older I'll use a birthday cake. I think Prom should just be an event, Teenagers on Student Council would put together allowing players to decide when prom is, instead of waiting for the last "30 days before aging up"