Most “unskilled labor” is heavily skill dependant. You wouldn’t want a chef, builder or plumber who didn’t know what they were doing. And for production: machinists, mechanics and foremen make or break profit with their skills.
So what’s a better name for these jobs?
There’s a lot more to it than “carrying a lot of plate at once”.
First, you have to memorize the menu backwards and forwards. Not just the items, but also the ingredients and the cooking techniques. A customer is allergic to everything in the nightshade family. Do you know what you can’t offer them? Better learn it. Someone has never eaten smoked chicken and is concerned with the pink color of the meat. You better know how to explain the smoking process and how it affects meat color. What is the temperature difference between medium and medium-rare? Are your oysters local? What’s in rice pilaf? Why is it called “she-crab soup” (it’s not why you think)? You have to know all of this and about a million other things, and be able to recall it on the spot without hesitation and with full confidence, every time someone asks.
Second, you have to be a salesman. You need to be able to know how to convince people to buy something that they may not have considered buying when they walked through the door, and you have to know that they will not only thank you for it in the end, but financially reward you for it.
Third, you have to be cool under pressure. You might think you are, but until you’ve worked a dinner rush, you have no fucking idea. It is non-stop, go go go, and you need to time everything just right. You’ll also be talked down to by customers, yelled at by cooks, burned by hot plates, sexually harassed by both customers and coworkers, while fielding complaints and mistakes, and you have to do all of this while looking like you’re having the time of your life. A sour expression or a snarky comment will get you pulled from the floor, and if you’re waiting tables in the US, there goes about 20% of this weeks income.
Fourth, you need to be able to get along with everyone, or at least be such a convincing liar that Ted Bundy would be impressed with your sociopathic people skills. I am not kidding. You have to be able to ingratiate yourself like family with the drunk college bro table just as well as the black church group table. If you aren’t a social chameleon, you need not apply.
I could go on and on, but I hope you get the idea. Waiting tables is not easy, it’s not “unskilled”, and it takes a very specific personality type to do it well. The job has a high turnover rate because most people can’t do it.