What's something that, if not in Seasons, would disappoint you?

I would be disappointed if I cannot set seasons per world. I also want to have control of the length of season. I wouldn't even mind an option to manually change the season. I have a long rotation and I don't want the season to change until I finish my rotation of sims. I want all of my Sims to experience spring, summer, fall and winter at the same time.