If you’re full time fully flexible, that means you get to listen to everyone else complain about making less money, even though you’re the only one there when it’s busy, or for opening to closing, or on weekends. You make money because you live there and cover for everyone else. Your time isn’t respected if you have a life outside of work. And to top it off the customers don’t like to treat you like a human even if you do a great job.