Changing your mind is free.
Changing the work isn't.

The Invisible Labor Mind Virus

It's a peculiar condition that causes otherwise reasonable people to believe that if something looks easy, it must have been easy to create. Symptoms include underestimating expertise, assuming every change takes five minutes, and believing work already performed somehow disappears when a customer changes direction.

Ideas are free. Decisions are yours. The labor required to make them happen is a professional service. And yes, that includes changing your mind.