Commonly - though the deal to close is marriage (or sometimes a one night stand).

actually its true, I guess:

I have been in partying in my teens and twens, 3 years somehow "heavily". When I turned 40, I found out the only reason I went to parties and clubs for me was to meet girls.

> Do you mean most people go to parties to close deals?

It sounds like the concept of social/civic organizations caught you by surprise.

Idk I just don’t see it like that I guess. Never really closed a deal at a party :/ I just get drunk and enjoy the music

In one way or another, yes.