I think it has little or nothing to do with screens. Young people are just adapting to a society that thinks of people who remember things as annoying at best and troublemakers or terrorists at worst. We've become a say the words society, not a have something to say society. You don't have to remember for very long in order to repeat something, in fact it can become a problem because you'll remember back when you were told to repeat the opposite.

It's also very difficult to claim to be a victim if everyone still remembers what you did.