> At my kid's school the target is no phones until 8th grade.

Public or private?

I've got a lot of insight into local school districts in my area and a little into local private schools (good ones—not poor-quality evangelical schools for parents who don't want their kids taught about evolution, or something like that) and the public schools have all completely given up on policing phones and wouldn't dare suggest that parents ought not be giving their 3rd graders smartphones, while the private schools both police them more heavily and seem to serve way fewer families inclined to give preteens a smartphone to begin with.

Feels like the beginning of an even-greater class divide in education, to me.