My experiences exactly. But I have GCSE's, and various certifications. At least tried to get on the ladder but didn't. So why should I accept toilet cleaner.
I'd rather be unemployed than go back to the supermarket, it was that miserable. Every now and then a supervisor or manager made your life there living hell. Also it's hardly a career, it's not what I wanted to do. Perhaps maybe if I have no skills, qualifications and a bit thick. If you're a full timer you are unable to plan interviews.
When I do look for jobs that are suitable, they're either miles away, require transport, or require someone with vast amounts of experience. No trainees or anything.
And when I do a wide search from various jobs- retail, warehouse, labour, it found 3 jobs. 3. And one was too far.