Jelly,
I think ALL the meetings have something to do with it. In the Theo. Ministry School, except for the sister's talks, the presentations were monologues with no room for debate. IN the sister's talks, they only had 5 minutes, so there would only be room to demonstrate a "stock" objection, which can be easily overcome.
In the question-and-answer meetings, the object is to drill us with the main points of each paragraph. Say it in your own words, but stick to the point!
It seems that your second point, the extreme 'no part of the world' stance has a whole lot to do with JW's alienation.
You said "most Witnesses have no idea what's going on outside". I remember one circuit overseer encouraged us to read newspapers so as to have topics for discussion in the ministry. (I guess the sub-theme was, "don't look so ignorant out there!".) I was and still am an avid newsreader, but I think I was always looking to put a JW/"Kingdom" spin on the news as I was reading it.
But mainly it was the indoctrination that "the people are evil" or could be. After all, just look at how bad the world is getting? So you must avoid the people, except to try to turn every mundane conversation into a Witnessing opportunity (without drawing strange looks). If you had any friends outside, it was implied that such friends should be abandoned.
So later, there is nothing or nobody to "go to". So, in theory anyways, you're stuck!
Gopher, trying to improve my "social skills"
