This was interesting. I see a lot of these emotionally immature traits in people I know. In fact there were a number of different times I was floored by some super specific example that unfortunately came straight out of my life. And I see a lot of the "internalizing" behavior in myself - and in other people I know. But I also see I myself have a couple mild emotionally immature traits - I wish there was more on what to do if you yourself have some emotional growth you need to do. Still the strategies on how to deal with other people will be helpful.