Personally, I love to see Pre-made Sims have interesting, scandalous and drama filled storylines and interesting connections with each other. Affairs, rivalries, paternity issues. It seems like Since The Sims 2, we’ve gradually got less and less lore and storylines in the game and it’s a shame.
Even the very vague and tame storylines we’re supposed to have in TS4 according to the Family descriptions aren’t actually reflected in the gameplay relationships.
It doesn’t take much resources to add in these little touches of lore so it seems disappointing they’re not included in my opinion,