Create our own Events!

That is actually a great idea. Players want social events like pool parties, baby showers, graduation parties, funerals etc. This would allow players to create their own social events and use them in the future.
However, what these social events' rewards will be? Will there be new objects that players can set as a rewards or reward sims some satisfaction points? How will the goal change depending on the location (Date event's goals are different at restaurants)?