@Mary Terry
True as far as it goes, but not the entire truth.
I think that's a fair description of a social event that people are forced to attend. In that case everyone is expected to fake enjoying themselves.
And I think it's also accurate for a person who doesn't want to be a an event that's working well for most people there, but not for everybody.
But another side of it: I sometimes watch football matches in a bar that has a "football club alignment", as in the correct location. So standing room only, and no shortage of "not very social" people, including me.
Naturally 100% of the people there have large flat-screen TVs at home. They are there for the company and the "vibe".
The vibe is
always good. Even if the club loses the match (not infrequent). You talk to the people nearby about the ongoing match. You cheer and groan in unison (it's like that weird "synchronized disapproval" thing, except it's collective
agreement about something). And if you do it often, or demonstrate a genuine bond with the club (not me), you can make "sport-domain" acquaintances very easily.
That's as much of an extreme case as your examples, but I think the dissenting position has to be made.
And similar things happen a lot of other contexts. The main requirement is that everyone wants to be there, and whatever brings the group together is something positive. For example shared physical activities do this - just going for a walk in a forest, or along a shoreline usually breaks the ice.