Another thing to chime in with—when I was still going out to clubs regularly (in the UK over a decade ago), it was pretty much the main way to meet someone new. Nearly all of my romantic relationships started at nightclubs or music festivals. Now people have a sea of apps for that, I imagine it's another reason to not bother with what were already overpriced clubs even back then. And tbh, I get the impression that if someone went to a club to meet a new partner these days, it probably would come across as a bit creepy.