A few years ago, I gave a guest lecture in a religion course at a private four year college. I gave a brief history of the JWs from Russell through Franz, the various failed prophesies, etc., and my experiences growing up in that environment in the 60s and 70s. Most of the students in that course were 18 and 19 years old. They looked at me like, "What the fxxk?"
The average person could (or is it couldn't?) give a rat's ass about JWs.