Five Reasons I'm a Barista and Not a Shift Supervisor:
1. I clock in, do what I'm asked to, and clock out, all at my pre-designated times.
2. If someone asks me to come in early or stay late, I can say no and although it might be accepted grudgingly, it will be accepted.
3. No cash handling outside of actual transactions.
4. No key carrying.
5. I don't have to lay out breaks, appease angry customers who ask for a manager, be accountable for labor, and so on and so forth.
Being a barista is fabulous.