I don’t attend class reunions. I keep contact with the folks I like and avoid the ones I don’t.
Never been and no desire to go either.
I’ve never been to any of mine.
some friends have gone, and say they didn’t enjoy it. They said the “cool” kids, or “cliques” all hung out together at the reunion, and pretty much ignored everybody else. Just as they did in high school.
Other friends said how so many people were braggarts; how they went to law school, were partners in law firms, had high positions in the government or major corporations, that sort of thing.
So, anecdotal evidence — friends who have gone just didn’t enjoy it, and I never felt any great desire to go. I’ve kept in touch with some high school friends, and don’t really care whatever happened to most of the people in my class.
I don't recall going to any of mine.