Yeah I dunno if I buy that explanation, for reasons given in both of the sibling comments. I think it's more likely that students are dopamine-addicted to their phones and don't know how to exercise the necessary self control, and parents and teachers are unwilling or unable to do it for them.

It makes DARE from the 90s feel even more surreal than it already did when I lived through it as a student. Kids, don't do drugs, but it is okay to become dependent on technology.