Mostly, it’s due to the hype. If people were to do something that isn’t “trendy” or “hype”, they would look stupid. Just facts.
Example, when planking came out, people would do it to the point where they would just cause trouble and think it’s a cool thing to do. Some people would do it ontop of police cars and such and people would get in trouble. Imagine planking not being a thing and a trend. People would think that’s just pure stupid.