So many premade households!! Which ones do you delete with no regrets? 😅

I don't delete premade Sims, I usually never play them, though.
I usually keep them, because it gives my Sims someone to socialize with. I also sometimes have my Sims marry premades, I have one Sim currently married to Caleb, and they have two daughters. One daughter was made in edit mode, and one was born in-game.
Overall, I just ignore them and let them be, I just let them die of old age.