I have long aging and currently give my sims birthdays but I have to track it by having them take a picture of themselves, then naming the photo with the day of their birthday, then editing it every week on that day so that I know when 4 weeks have passed. I was already looking forward to seasons so I could note the season and day, then just update it on their actual birthday rather than every week. But now I get an actual calendar system where they can have actual birthdays! I'm so excited for this feature. Not to mention being able to plan holidays and social events. I could even schedule one night a week as date night and one day as family day.
