Social media definitely picked up 2000-2010, but the current manifestation of it didn't really lock in until ~2010 with the advent of the iPhone, instagram, snapchat, and all the other social media mobile apps that compelled people to constantly be sucked into it throughout the day rather than just whenever they were on or near a PC or laptop.

The graph here shows social media exploding from 2008, not before.

https://www.worldline.technology/post/over-2-5-billion-peopl...

Exactly. By 2018 around 95% of teens used social media. We would thus expect the trends to have spiked more before then rather than after. Instead we see a linear trend.