I mean human interaction and what you do with other people. Was anyone forced? Did all people involved agree willingly? Without coercion? Then it was voluntary.
That is what anarchism is really about. It is about voluntary interaction between people without the need of outside control systems or rulers, who run those control systems.
Ok. I get you now. But don't think anarchism is realistic because there are people who will do things that need regulations. It is human nature.