Call it blind faith if you like, but the rewards of believing that people are on their way to being first-class are enormous and backed by the research.
Since an influential study in American classrooms in the 1960s established the power of the self-fulfilling prophesy, there have been hundreds more. Our belief in their potential or ability can be a useful motivator for children and adults.
Let’s put in a good word for stress. Climbing mountains is stressful, but you’d be struggling to talk some people out of it. It’s stressful competing in tennis or chess. Even watching your local football team in action can be very stressful. Imagine how dull life would be without it.