The problem with this generation of kids is that they're literally not prepped for school. Their parents aren't engaging with them at home because mum's watching her stories and step-dad of the month's out on the piss, so there's no inherent desire to learn. You have kids who've never had a book read to them at home so they have no interest in learning to read for themselves, kids who've never been told off for bad behaviour so they're incessantly disruptive to the class, kids who have no aspiration to get a job when they're older because no-one else in their family works either etc..
It's easy to blame iPads or the internet or whatever, but the overarching problem is incompetent parenting.