The focus is on the experience rather than the completed product.
Art is done for the child's inner pleasure.
An adult's drawing of specific things like an airplane or heart sets a standard that young children cannot realistically reproduce. This creates frustration and low self-esteem in the child. The child should gain a sense of personal potential and capacity to manipulate materials. Use non-judgmental descriptions when talking about a child's artwork. This allows children to make their own evaluation of their work.