It's a mantra that's true of pretty much any job that has ever existed: you're never going to know what it's like until you've done it yourself. This can often make career-related conversations with people who haven't worked in your sector a vexing experience (seriously, you have no idea how many times I get asked "what's your favorite meme?").
This is especially true of the many professions that make up the service industry. There is no kind of toxic solidarity like the type formed when you're all working in horrible conditions, on minimum wage, for deeply annoying customers. A perfect example of this is the professional kitchen, which is widely misunderstood by those who have never set foot in one.
Those who have had the pleasure of this experience have been able to express their frustrations in a thread started in r/KitchenConfidential, asking Redditors who work in food service to list all the dumb things people say to them that relate to their job. To all the hardworking individuals who make and serve our food for us, we salute your patience.