Regular townies turning into spellcasters?

I just started a new save because I just want a world with more occult sims of my choosing, but almost every normal sim has turned into a Spellcaster. I think, like GF, there should of been a “game option” in turning off spell casting for the general population. I think, like many others on here, that it should be something that we decide. And because of the push of random spell casters, I had to download a bunch of witches/wizards from the gallery and place them just to stop the insanity of generation and assignment...Bob pancakes, Katrina Caliente, Mortimer Goth, Jasminder Beheeda, and many others all became spell casters....And let me tell you, it’s quite a hassle having to go activate every household to remove that trait.