introversion/extraversion is it a coping mecanism
Introversion isn’t a coping mechanism, it’s a real thing.
There is (1) your natural, biological temperament and personality traits that you got from genetics and early neurodevelopment), and (2) trauma-driven behavior. Humans are primates, so we definitely have those biological markers. It’s the same reason why puppies have different temperaments and baseline stimulation requirements depending on their breed.
Imagine that you have a dog whose natural temperament is curiosity and openness. They end up with an abusive owner who brutally beats them regularly. Now the dog is afraid of humans on a deep level, and their nervous system is literally conditioned to avoid humans as a way to keep them safe. If you were to see this dog in an animal shelter, you would think “oh, this dog is shy and timid around humans, that must be their personality”. Are they shy and timid, or are they simply traumatized out of their mind?
This is the flaw in mainstream introversion/extraversion theory - they conflate the two. The evidence for this, are the countless introversion/extraversion tests on the internet that use fear-based questions as determinants. For example: “Do you perform more poorly when people are watching you?”, which indicates fear-driven behavior (fear of being judged). And if you pick strongly agree, then they push you more towards the spectrum of introversion. Here is where it gets interesting, lol. Most people think that the conflation only applies to introversion, when it’s equally as present in extroversion. For example: fear of being alone, talking a lot as a way to cope with anxiety, fear of facing negative thoughts and emotions that surface during isolation, etc.
So it really comes down to the question “what is really the driver behind these behaviors and tendencies”. If it’s driven by any type of fear, then it’s not your “true self” or whatever you want to call it. Take away all of the fears from the equation, and where you naturally align with is going to be your real personality archetype. This also applies to general purpose. “If you had no fears or negative conditioning holding you back - what would you be doing?”.
Here is something to consider. Look at the state of society where most people are living in survival mode and addiction (emotional avoidance) in various forms. Working jobs that they hate, constantly wearing a mask to please others, and basing their whole life on validating external expectations whether it’s from society or family. There’s not a lot people who are actually living for themselves. Most people are living a lie. If someone is living a lie, then any analysis of their life whether behavioral or perceptual - is also a lie. “You’re an introvert based on your life, which is 90% a lie.” Realistically though, it’s less likely for someone to swing to opposite spectrum. The best bet (meaning the safest plausibility) is that someone who identifies as introvert or extrovert, does in fact naturally have an inclination towards that, but it’s exaggerated on by the coping mechanisms, trauma, fears, etc. You can actually see this commonly occur, where an extrovert will tone down their extraversion throughout self-development - however they are still an extrovert (leaning towards that side of the spectrum), and vice versa. That being said, a “180 swing” can absolutely happen if the person is that boggled down by fear, trauma, lies, and conditioning.
I did 1 year of Khan + Stark, and my extraversion my went off the stratosphere, lol. Pre 20’s I was shy, and unexpressive. There’s usually no point in overthinking these things because as long as you keep growing while staying aligned, everything will work itself out.