Early in our dating, my wife had me take the enneagram test. I got a 2, she’s a 9. I told her I found a page detailing relationships between 2’s and 9’s and some of the strengths and weaknesses we’d navigate as a couple.

As I was reading it she kept saying, at first, “That makes sense!” Or “Yeah I can see that.” There were a few that were kind of out there. But she kept listening.

Eventually I revealed to her that I was ACTUALLY reading a page detailing relationships between a dragon and a sheep, our respective Chinese Zodiac signs. And that I was using this to support my argument that personality tests are astrology for educated people.

Still ended up getting laid, though not that day. 😅

because they are

nobody takes them seriously other than teenagers and other emotionally immature folks.

It's clearly pseudoscientific nonsense. But it's easier to say "I'm a pisces" instead of "I'm feeling hesitant about the future of our relationship, Sarah" if she is into that. The value is in being able to reference loose personality archetypes without having to spend a paragraph describing someone.