Tutorial on how to hire your own sims you made, to work in your Restaurant

@mcrudd Just a question someone might have asked before me:

I usually edit all my NPCs or delete or create new, but every time I play on a household the ones that I've created disappear and get replaced by the same bad-looking NPCs. Do you have this issue as well? I love the tutorial but I'm not sure if this would work in my game.