Create the demand and supply will follow...

Not that I agree with the premise that there isn't anything to do. Even if were to limit the scope to just your examples, printing presses are still around, and those screens can be used as digital alternatives.

The only missing input from society here is that it actually need to put real effort into raising its young.

It seems like people's mental model of this is:

1. Ban phones

2. ???

3. Childhood is saved!

I'm trying to figure out what Step 2 is supposed to be.