In 1515: Your idea that people learn to read isn't wrong, but it's elitist.
The majority of peoples computer experience has been reduced to tapping colorful pictures for dopamine hits that force them to watch more adds.
An interface quite literally better suited to monkeys than to people: https://www.youtube.com/watch?v=cPiDHXtM0VA
That we have not taught people the fundamentals of computer interaction is a failure of education. One that took centuries to solve for books and wasn't perfected until the 18th century. And only when people had stopped killing each other after finally reading the Bible and realizing that the information gatekeepers were lying to them for their own benefit.