All my townies are mean and lazy???

I do have an old save where, in the start, I deleted everyone and created my own Sims. In this save I also did a townie rescue to populate my world (move into empty houses) and had 'move in household into empty houses' activated. In this save, I did notice that the lot of the townie Sims that spawned had the klepto trait. Didn't really notice what other traits, good or bad was also popular because I don't really mind the negative traits. I do however dislike the klepto trait which is why I noticed that a lot of game-created Sims had it.

I changed out this trait in CAS for a lot of homeless townies and even in households the game moved into empty houses for me. I do remember that I had one such generated household where all the Sims had only negative traits but only one had the klepto trait. I did take all the household in to CAS and changed out some of those bad traits out for good traits). I have not seen this happen in any of my other saves. Neither in my oldest and preferred save or any of the others.

At the time I created that particular save I didn't have any mods only cc. I do have a few mods now.