Being young is being curious. And most people become cynical and overly critical towards life as they grow older, and only a select few retain the wonder, innocence and joy of a child.
An adult's life consists of optimizing life using knowledge, mental models and practical shortcuts, a race towards better efficiency in everything. We stop asking the right questions, like the most common question a child asks: Why?
Our inner critic is usually formed in a system based on right and wrong answers and outperforming others on structured tasks. Listening to our inner critic will rarely improve our creative work - it may actually result in conformative work.
We need to turn this inner-critic into an inner-coach and drive our personal growth.
We do not need to suppress or kill our inner critic, but only need to re-educate it, but only need to deploy three simple ways to make space for the inner child: