How needed are mods for TS4 compared to other sims 4 games?/Your Favorite Mods (2019)

I have MCCC for housekeeping, and as a bonus I learned it lets pregnant sims age, which prevents the issue where the age gap between two parents widens

Also, I love the meaningful stories mod. Roburky, its creator, advertised it on reddit and I decided to try it out. It stabilizes your sim's emotions and makes their emotions more meaningful. This is how emotions should've been done