Like the “flat earth model” is actually extremely useful if you don’t intend (can’t) travel significant distances - gives you a coordinate system, maps and ways to predict where you’re going to be tomorrow if you travel on foot/horse.
I think astrology used to be a good foundation for people to think about personality types (psychology) in isolation and more importantly how they interact with one another.
By slotting people into 12 “categories” you could start to theorise which personality type “jells well” or “vibes” with which.
The time of birth can also correlate loosely with personality. Like the famous finding that successful atheletes usually have birthdays at the beginning of the year, because of practicalities of how our athletics programs are structured.
Anyway, I don’t disparage people for talking about astrology, liking to ask people what do somebody “is like” if they were born at a different time, leads to some fun discussions.