No one admits when they don't know something. The mentality of, fake it until you make it, casts ignorance as some sort of failure to be ridiculed. As a result we have politicians and laymen believing they can do something or know better than experts on a specific topic.
The other is the complete lack of humility or embarrassment when fucking up. People will just stream or post their most idiotic ideas to get 'views,' even if it makes them look terrible. This idea where you need to live-stream your entire life baffles me. Not sure if this falls under the tech and social media restriction of this post.
Installing stuff, then looking online for a way to fix an annoyance, find a script to fix a StackOverflow post that vaguely matches our issue, only to break that thing even more. Rinse and release, ad nauseum.