There's that Locus of Control theory...about two kinds of people — those who think their lives change due to internal reasons and those who think life and the world are happening to them. So, same here. Some will act, err, improve and grow (with the possibility of quitting at any stage, even too early in some cases, alas). And some will watch. Or any mix of the two. Depending on who's got what on their minds and priorities, etc.

I...I am learning.