There's a difference between hearing about a social event that you missed after the fact and seeing it going on live without you in real time.

High school was hard enough for me when the web was just barely coming out of its primordial state of "some nerdy stuff for dweebs".

I also can't imagine the magnitude and speed of social and interpersonal relationships that happens as a result of social media and just instant communication. Trying to navigate that as a teen is just something I can't comprehend, before one learns how to truly be equanimous as an adult who has a separate identity from how they are perceived by others.