The fluency illusion is a tendency for people to overestimate their abilities without sufficient evidence. 

Yale professor Woo-kyoung Ahn demonstrates this by showing students a few seconds of choreography and challenging them to imitate it. (It seems to cover a lot of ground similar to the Dunning–Kruger effect, a tendency for people with limited competence in a particular domain to overestimate their abilities.)

While the most trained craftspeople make their work look easy (sometimes even deliberately covering up the effort!), the second you try it you immediately realize how difficult it is. 

For example, when you read something so simple it’s brilliant, you may feel like you can also type it out, only to realize after a few attempts how difficult it really was for the author.

One way to get people to appreciate art and creative work—or really, anything—more is to get them to try doing it themselves.