https://increditools.com/ad-blockers/
I think survey results showing 40% using ad-blockers is sufficient to question your assertion that most people don't know about ad-blockers. Folks may not all be using them, but I think a majority certainly are aware. And outside the U.S., even a majority use them in some countries.
Ordinary folks on the Internet have friends and family that are technically inclined and often seek advice from them. But most of the time, ordinary folks figure things out just fine in their own.