I agree with what a lot of what you're saying here (especially in the section about how to deal with someone with emotional immaturity) but I do think that you're taking a somewhat dogmatic stance at times on an issue that is multi-faceted.

Some people do not give themselves the opportunity to mature and evolve from their own circumstances in life because they internalize a concept of freedom that is not quite right

This seems to posit the idea that they are making the choice to be this way, which I don't think is always the case. Emotional immaturity can be formed through a multitude of factors and circumstance, for example many people I have met with really strong tendencies toward emotional immaturity are the victims of abuse rather than, as you have spoken about, people who are coddled by parents when they're growing up. I'm not saying that's wrong and certainly that type of upbringing does cause people to act in a childish manner when confronted by things that they view as unfair etc. But I really do think this article misses out on exploring the fact that people who are physically, sexually or emotionally abused will also show similar emotional immaturity. In their case it's to do with triggers in the world (or people) causing them to regress to a child-like-state in an attempt to deal with the memories triggered.

Anyway, lol I've gone off on a bit of a rant @dedicatedguy, as always your article is really well researched and thought provoking. I just think it is only half of the picture.