The Society gets $15000 from the City of Vancouver to run. There are a LOT of rules are in place so most all ages don't qualify to be part of it even if they already do all ages on their own without them. They don't charge admission, and just pass a hat around so don't expect to get paid a lot or at all.
For physical events that happen at a specific time. For example a concert, or dance performance. If there are multiple shows, you can still duplicate your event to cover them all.