Yes, that's one of the most thrilling things to realize is people are not willing to study or develop any type of plan when investing or trading. There are so many arrogant individuals who say "I am too busy to research or figure out where to put my retirement and long-term savings, I leave it to my broker" and other individuals who watch Mad Money thinking Jim Crammer their Hero or Money making Messiah! Most people will say crap like "I don't have the amount of time you have to micromanage my account" or when the Market is about to collapse they say during a 20 or 30% meltdown "I am a investor" even if their holdings have stocks showing signs of BK their going to show off they do not "micromanage their holdings' like we do!
Hint: They didn't come up with those ideas by themselves.
Groupthink is powerful, and most of us has been under its spell one time or another.
However, if most people were to start managing their accounts, they would probably lose more than simple buy & hold! The majority just cannot win above average anyways.