They're never going to add full actual religion into the game, and that's okay. But what if they did

I disagree with this idea, although its very creative , it is a very sensitive subject and would probably cause unnecessary arguments like it does already, please dont take any offense on my comment, But they are simmers like myself that dont have a religion and I personally wouldnt want this in my game, it's never been in the game, it wasnt ever there to be missed in the game, seasons has a calendar that you can add events, that can represent your culture