For me, being the first one to become a parent meant saying no thank you to so many invites that they stopped coming. Then aging has dwindled the number of fr

For me, being the first one to become a parent meant saying no thank you to so many invites that they stopped coming. Then aging has dwindled the number of friends I stay in touch with. Covid sure affected things quite a bit, as did breakups and fights between mutual friends, so groups that used to hang out can no longer. Being single as more and more people get married has also been an issue. For society at large I know many people who still haven't cleaned their home from covid. And for those that are still working from home, it's harder to invite people over to a party at your office. But for the trend before covid, I think the recent political divides may have had an impact. People on the "left" and "right" are reluctant to socialize with each other, and people in the middle don't want to hear it from either of them. For example, seeing a friend share political memes might make someone think that person will be annoying to be around, and not worth it. But really I think as we get older less and less people host parties. I know I tried to host them a few times, but I hate it, so I stopped. Certain people are "entertainers" if you're the entertainers in your group, then it falls on you to throw the parties.