Linked to the media bias mostly, and also social media. The fact that your brain treats the most commonly seen as reality. It used to be fine until social media and TV came to be. There, they way too frequently report "crimes" (leading to parents keeping their children at home even though crime rates actually DECREASED), "dream life" (making the "normies" guilty), crazy TikTok trends (making others imitate it too, because shock can override the nervous system). This comes from the fact that your brain has to form a model of reality based on what it most frequently sees (though extreme events, the peak-end rule, etc. can skew the balance)