Making a film is so hard that if you don't have your main actors going along with the ride with the rest of the crew it can make your life very difficult.
People want to see realism in action now. People want the actors to perform than the computers performing. Though I have done both, I enjoy the realism of action more.
Are you genuine? Or just an actor? A representative? Or what it is that is represented?-In the end, you might merely be someone mimicking an actor ... Second question of conscience.