Regular townies turning into spellcasters?

If it's true that your favorited Sims and those they interact with are not going to be targeted as spellcasters to fill whatever quota the game requires, then it would follow that saves with a lot of households and a lot of relationships would be more insulated from having familiar sims become spellcasters without the player's control. As someone pointed out above, if you start a new save then you (or your sim) won't have those relationships in place. This happened with Get Famous as well; I started a new save with a test sim to try out the features and Marcus Flex and Eliza Pancakes were assigned as bouncers. (I actually found it hilarious but there's no denying it was a bit out of place). In one of my larger, established saves where I have a ton of played sims and they've interacted all over the place, I never see a townie get assigned randomly (or at least I've never noticed it) but then the game DOES generate a random to fill the role.