>it makes logical sense why there would be correlation The fact that this is "obvious" to well informed parents who take their kids mental health seriously mak

>it makes logical sense why there would be correlation The fact that this is "obvious" to well informed parents who take their kids mental health seriously makes it more likely that this is correlation and not causation. At risk kids will be given smartphones. Not at risk kids will not. I suspect that there are elements of correlation and causation involved. I don't think it's a simple relationship.