> To the best of my knowledge, none of them are ostracized by the group.

Yes, in my experience it isn't as severe as "Ostracized", but definitely a bit "left out" occasionally, especially when friends are all doing "snap streaks" and swap BFFs (as they do) etc.

So at least in my area, a girl at 12+ will miss out on some social peer activities if she does not have a phone. End of the world? Probably not, but I guess it depends on your community's local culture. Also, the valley probably isn't a great baseline for comparison.

I'm not recommending anything. I just think we tend to ignore the nuance.