I'm using the clubs to create social cliques. Just an example of the stuff I have...
The Desperate Housewives. (Who ofc all the snooty walk, & dress in fancy dresses & high heals.) & They go out for coffee's & visit yoga studios for massages.
The drunk dad's. Who have a bowling league, and play bar games, and drink bar drinks, etc. To relax & get away from their snooty housewives lol.
Then there's more basic groups, like the hipsters, and emos, goths, jocks, preppy girls, etc.
A few of my clubs are gender specific, and all the sims in each club are dressed in similar fashion choices or have similar interests.
I originally started building them up for my teen sim, (was playing a more "urban" household in san myshuno) & everyone she was meeting through RNG at school was like nice looking white kids. & Ofc I wanted her to have friends that actually looked like her, and seemed like people she would want to talk to instead of having hugo & luna villerial always trying to come over.