Just thought I’d mention that Rick Moody, author of the novel The Ice Storm, was born in 1961- same as me. Meaning that both of us were too young to know of or participate in any Seventies key parties, even if they really existed.
Moody himself acknowledges that he never witnessed or even heard of key parties until he was in his thirties, shortly before he started working on his book. Indeed, at the time, he’d never actually met anyone who’d CLAIMED to have participated in one.
Obviously, that does NOT mean such things didn’t happen- just that the most famous book and movie on the subject were based on the author’s imagination and on rumors he’d heard, rather than on his personal experience or extensive research.