I haven't been to one and don't talk to anyone from high school. Maybe I don't feel happy or successful, or maybe I worry about my happiness or success being judged by my former classmates. I'm not entirely sure. Another reason I've ignored them is growing up in Wisconsin and especially rural Wisconsin, my assumption is the reunions all devolve into drunk fests. There was a time in my life where I might have enjoyed that, but that time passed within five years of graduating from high school. I assume it hasn't passed for too many of my former classmates, so I just avoid the whole thing. There's really only one person I'd care to catch up with, a long lost friend who was a year or two younger. Last I knew she got married, and even then we rarely talked. That was ten years ago.