Thanks for your anecdote Muon2. That was very interesting. My anecdote is that I find that there has been a material decline in literacy skills in my lifetime. Folks who have spoken English all their life, as their first language, in general just don't seem to me to have the vocabulary and writing skills that older cohorts fitting in that category seemed to have.
Communication by SMS text, along with app- and web-based instant messaging, are the prime way most Millennials communicate these days. Younger folks simply don't use their phones as a phone.
You can say that literacy skills are somehow in decline, but never before have younger Americans been doing so much reading and writing. And, of course, less anecdotally, illiteracy rates have dropped significantly since you were a kid.