Earlier quoted context omitted.
>introverts find interactions with other “draining” I'm pretty sure this is bullshit. Level of drain = lack of trust in that person X overall level of anxiety If you're highly anxious and socializing with people you dont trust (strangers, acquaintances) then the experience will be stressful and draining. Ive met many self declared introverts who have no problem socializing for long periods in small groups with people…
You're heavily conflating anxiety and introversion. My wife is an extrovert with anxiety - once she gets comfortable she's energized by people. She comes home bouncing off the walls. I'm an introvert - regardless of comfort level I come home and want to go to bed immediately.
That process of getting comfortable is the relevant context though - not a virtual dial in their brain that goes from "introvert" to "extrovert".