We're afraid of disapproval, disagreement, criticism or rejection by others. The need to be liked and accepted is very strong.
So we keep our real thoughts and feelings to ourselves.
We lose touch with what our true feelings are.
We later become angry and resentful because we didn't speak out.
Other's don't know what we really think, feel and need so they can't help us get our needs met.*
*Excerpt from Dr. Thomas Gordon's F.E.T. Young Adult Resource book