The default sharing option for new Facebook users is set to public, meaning that anyone can see posts, even if they don’t have Facebook accounts. There are a few simple ways that Facebook users can change that, to make sure that only their friends (or a select group of their friends) can see posts. Additionally, users can select friends to not see posts.
Compartmentalizing has its perks, and there’s an aspect of siphoning off information and contacts that feels clever and efficient, which can feel hugely rewarding. Creating a Facebook group offers such a way to selectively share information, picking and choosing which friends, family, or acquaintances to share which information with.