The requirement for people to post their lives online, in the early days if the Internet the general rule was you don't post personal information online, now it's gone the complete opposite direction, I've met multiple people who write you of as "strange" just because they can't poke through your Facebook/Instagram/snapchat/twitter.

I don't keep social media accounts because it doesn't intrest me, and have been told multiple times that people don't trust me because I don't air out everything I think on an online platform.