There's a lot of Santa Claus moments in life - the myth-busting of things considered truisms. Santa's the first of many.
Other examples are the idea that your parents know everything, or the police are on your side*.
The one that I was happy to find out was that average penis size measurements you hear bandied about in your teens are erect sizes. It never felt so good to be average in my life. Junior year in high school, trigonometry class.
The Santa Claus moment that has hurt the most is the idea that older adults are smarter and know what they're doing. The first 20 years of my life this held true - older adults WERE smarter than I was. But that sort of plateaus as you reach adulthood.
Forty and fifty year olds have the potential to be wiser and more knowledgable than a thirty year old. But there is absolutely no guarantee. If you're a betting man, you're better off placing money that they aren't. The horrifying realization is not only is lack of learning the norm, most of the people in charge exhibit it because they were elected by the same idiots who don't think about anything for more than twenty minutes.
And they're steering the ship!
And wresting control from the idiots? Harder than it looks.
"When a true genius appears, you can know him by this sign: that all the dunces are in a confederacy against him."
* there are occasions where the police ARE on your side. But just because you're innocent doesn't mean you're not a suspect.