Not disagreeing there, as long as people aren't forced or "educated" to somebody elses "truth" when they are truly happy where they are. Wants, morals and realities differ, see also my slightly misunderstood comment under this post by @krnel.
My point was more that maybe the world you are free to move in once you have left your shadowy cave is just another cave, only more elaborate and slightly better lit 8-). You would then have to be a bit more careful about helping people "move caves", as you run the risk of making them unhappy without offering them a better reality, just a different one, and possibly one that doesn't suit them at all. I don't believe much in a Truth that is Best For All.
Yes, I did just finish reading @krnel's post and found it to be quite similar to a modern version of Plato's cave here - seems we had similar thoughts today in our writing topics.
The sophists of the past have used the many caves discussion, they were the 'devils advocate' or pessimists to the debates. Seems to fit you here @orcdu.
Towards the end of my article I touch on this issue of those that don't wish to leave. This is why you must educate those around you at a slow pace. Go too fast and their eyes are still in too much pain to see what you are trying to show them. Know that not everyone will ever want to leave the cave either.
While you must know that not everyone will want to leave the 'comfy' cave and head out into the 'unknown' world, those that have left the cave have a duty to inform the prisoners of it and help any that wish to leave. That they are chained and confined and shown shadows of real things.
I'm not sure you must educate people who are truly happy where they are, but I can also see the importance of telling them about other possible realities without forcing them, which is why I like your post.
It is when people start to claim things like a (Moral) Truth people should be educated towards by someone who knows The Way, without taking their wellbeing, or the possibility of other truths and morals, into consideration that I stop being just a pessimist and start disagreeing.