Prohibition never works; people will always find other bad — maybe even worse — things to do. The human pressure to have social interactions may lead to creating terrible IRL friendships, ones that can be much more dangerous.

Instead, I would strongly advise for honest, mature conversations about the risks that social media comes along with. This can lead to a highly positive impact, especially if you teach how to observe interactions between people through social media, even if not interacting, yourself.