I don't get it

So out of boredom, I decided to make yet another save where I place a bunch of the same sim everywhere. The first time around, I filled the empty houses and then the empty lots but then evicted the ones in the empty lots so that I could have some out of world sims. Well, when I began to play, none of them were really showing up anywhere other than nightclubs and parties (or as fans). Most of them filled in NPC roles. I then noticed that when nighttime rolled around, they'd all be out walking down the street! I figured maybe it was because that Sim used to be a vampire and vampires walk around at night.

Today I deleted all of the sims and made a new one from scratch, filled in the empty lots and homes yet again, but this time I evicted all of the sims and then re-filled just the houses so that I'd have more sims. Surely this sim would show up now because he's completely new, but nope, they still only show up at nightclubs and parties and they still walk around at night. I never see them in the day. I've done this without mods before and I still had the same experience. Would anyone happen to know why?