If you’ve noticed, there’s not much love for curls in vanilla at all.
The Sims 4 base game is great and all, but the devs didn’t quite hit the spot in the hair department… especially for curly hairstyles. It’s one of the first things you get to customize and agonize over, because who’s ever satisfied with just 43 hairstyle choices? The crowning glory of every Sim is a good hairstyle.