This probably applies to parents watching their kids in sports. The more you know about the game, the more flaws you'll see in your DD's game. Of course, the more you will see flaws in others as well, but if nothing else, that knowledge of the game should make you humble.There is an actual disorder called The Dunning–Kruger effect
"The Dunning–Kruger effect is a cognitive bias in which an unskilled person makes poor decisions and arrives at erroneous conclusions, but their incompetence denies them the metacognitive ability to realize their mistakes. The unskilled therefore suffer from illusory superiority, rating their own ability as above average, much higher than it actually is, while the highly skilled underrate their abilities, suffering from illusory inferiority."
I know a good number of people who suffer from both the positive and negitive of this disorder.
Just did this recently with a 14yr old. Dad brought her to me because she had no speed or control, couldn't figure it out because her instructor told her she had "perfect mechanics". When I showed him his DD compared to more elite pitchers, yeah there was a light bulb moment.I love the reaction from players and parents when I have a new student come in for pitching lessons. The first session is always an evaluation to establish a baseline to move forward. I let them do their own thing. Their warm ups complete with wrist flicks and then shoot video of them in full motion from front and back. Then the fun starts with me showing them some elite pitchers and pointing out certain aspects of the mechanics. Finally we review the video I just shot of them while we compare and contrast. Humility achieved along with a pretty good grasp on the work that lies ahead.