As an instructor, you are in a position of authority over your students, but that authority is voluntary, limited, and temporary.
It is voluntary because your students choose to enroll in your classes. The students who end up in your classes get there because they have made a choice to do that. They have lots of other things they could have done this weekend, but they chose to rearrange their time to spend it with you. They have lots of other things they could do with their money, but they chose to buy a class from you. You have to treat them with the same respect a shopkeeper would give a customer, because that’s what they are—customers.
Your authority is limited. You can tell them what to do for the duration of your class, in your presence, on the range you control. But you don’t have even a tiny bit of authority to tell them what to do outside of class. Unless you do a good job selling your ideas, your safety procedures, and your techniques, your students won’t take your ideas home with them no matter how much they paid you to share them. You have to be a good salesperson to help your students get the most out of your class.
Your authority lasts exactly as long as the class lasts. It is temporary. As soon as the class is over, the tables turn. When your students are done with class, they will go home and hop on the internet to tell other potential students about you. At that point, they will have all the power they need to make or break you as an instructor. If you provided solid information in a safe and enjoyable format, you’ll be in good shape. If you didn’t, you won’t.