We raised a child with the principle that "No News is Good News". She turned out great! And she lives that way still. That constant level of screen stimulation is strictly not necessary for family happiness, and I think you all who think so have not really internalized what it means for a child to learn responsibility.
See also free-range kids, and the social insanity that causes kids/parents to get arrested for eg playing in a park alone. There's a bunch of mental illness out there, and the screens are big reason why.
Oh right. My beautiful daughter reads books constantly. Weird that, huh.