Childish

     We expect a child to be childish: self-absorbed, impulsive, and out of control at times.  A child's body and brain develop in stages until maturity.  Even teenagers haven't completed all the developmental stages until they reach their mid-twenties.   At that time, society expects grownup behavior.  Education and experience should help individuals to (1) realize they aren't the center of the world, (2) develop behaviors that help accomplish goals, (3) control their emotions, and (4) get along with all sorts of people in a variety of situations.
     After many years, grownups should have the wisdom to see the whole picture, not just the view from their own backyards.  They should be able to understand different points of view and realize everyone has shortcomings including themselves.  They should have empathy toward others.
     Unfortunately, we all fall short at one time or another of being completely grownup.  We may (1) get angry and lose our tempers or pout, (2) expect everyone else to adapt to us, (3) only see our own side of things, and (4) want our own way at the detriment of what is best for everyone involved.
     When you realize you are being childish, admit it first to yourself and then to those around you.  The next step would be to see if you can control the "child" and see the advantages of being a grownup.