I would agree with everything you said except the first part. You’re right that being introverted does not automatically mean that you don’t leave your house or don’t talk when in large groups. There is a difference between being shy or antisocial and being introverted. An introverted person may not be in their element at a large party or in groups of people they don’t know well, but it doesn’t mean that they will run and hide, or won’t say a word, just that they’ll need to some time alone or with a smaller group of people that they’re more comfortable with to regain their energy later. That being said, I think that a lot of these things were quite accurate. There was just a few that I think applies to people that are shy, not necessarily introverted.