Earlier quoted context omitted.
sounds way better that way
They are called potlucks or cookouts in the U.S. and they happen all the time. In fact, they are probably a lot more common than having a huge party (so large that you have to invite people in batches of half a dozen at a time) completely planned and executed by a single person. This article is good, don’t get me wrong, but this type of event planning is not really representative of how folk in the U.S. get together
For the parties as described in the article, I maybe go to one or two a year tops. Before I had a kid I used to host large parties like the kind described (~15 people tops though), now I just attend and contribute.