I stand by it because I'm talking about their behaviour, not what they are. They're bright kids ( or they wouldn't be her mates ). But what I often see them do, which looks a lot like randomly bashing at a screen to "make shit happen", isn't the pinnacle of technology I want my kids to experience. Not until 15, wasted with her mates and playing the 2032 version of DOOM or whatever.
Interestingly, if there's any friction or danger it comes from not biting my lip in criticising other parenting styles. That's actually where the weird stuff is, in the relations between the grown-ups. Most parents are naturally touchy about even implied criticism. And many do feel guilt about using phones and tablets as pacifiers.
As I say in the book, I learned that a long time ago and am a practising but not preaching digital vegan.