> The problem is eventually she'll be left out if she's the only one of her peers without social media.

My thinking here is this: its not necessarily the social communication aspect of social media that's the issue, it's the engagement-driven algorithmic feed that presents the addiction potential. Their feed becomes tuned to whatever gets them hooked, even if it's vapid or harmful. Because of this, I'll still let her text friends and probably use Snapchat or other IM apps. But anything that uses feeds is a hard "no."

It still leaves the potential for bullying, but that potential will always exist.