When trying to address problems that social media may cause young people, lawmakers focus on Facebook and largely ignore TikTok, which most teens use (Evelyn Douek/The Atlantic)

Evelyn Douek / The Atlantic:
When trying to address problems that social media may cause young people, lawmakers focus on Facebook and largely ignore TikTok, which most teens use  —  Many people think of TikTok as a dance app.  And although it is an app full of dancing, it's also a juggernaut experiencing astronomical growth.