It depends on the save but I can't wait to name them and sometimes even rule the worlds with holidays. In my Stardew Valley save they already have holidays in that game so I'll be naming them the same and the god figure there is Yorba so I'll have fun figuring out a few more holidays for grins. In some saves I'll have Sim type holidays. In some I'll have Judeo-Christian standards because it's how I was brought up. I have some more deviant worlds and some sims may set themselves up as a god figure with the masses having holidays based on that sim and the worship of. It just sounds like fun over-all to me. I can't wait to see what we are capable of through this.
It just sounds like it can be either light fun and/or a great tool for stories and game-play.