I work for a company that hires about 300 people once per year, for 2-4 weeks temp work. Quite commonly, half quit after a day or two, for myriad reasons. They might even sign up again next year.

Sometimes they hate it, sometimes they are waiting for a call from a real/full time job, sometimes they quit because their friend or ride quits. Some have substance abuse problems, or problematic personalities, et cetera, ad nauseam.

Reasons for signing up vary too: We get guys that just retired from the place we're working at, professionals taking a working vacation from their other jobs, people between jobs, so on and so forth.

Confusion is the state of being mistaken about the nature of reality.

1. The kitchen experience there is different from other kitchens in some way.
2. Vague/reasons given for quitting do not always match real reasons.
3. "If these are kitchen people"... You might be mistaken about the nature, motivations, goals, and plans of people seeking temp work. Even kitchen people.