Maybe. I'm not arguing but just curious. Back in the day I knew several people who were illiterate. Obviously there was no social media in the '70s but I don't know if their lifestyles would have included Facebook even if it existed. 50 years later is there a significant slice of the population that hasn't adopted technology? I don't know. I've been isolated in the tech world too long.
I'm excluding people like some of my older relatives who are computer illiterate and still depend on newspapers and magazines. Is there anyone under thirty that doesn't have a smart phone?