It’s very similar to the asda equal pay case, which has already gone through the supreme court so the precedent has been set.
The Birmingham dinner lady case started all this off, which was a disgraceful cash grab. Their representation successfully equated that dinner ladies who work a few hours a day term time only had an equal job to bin men who work all hours (they do gritting as well) with refuge. It’s a large part of why the council went bust as it meant selling off revenue generating assets such as the nec.
The care worker equality case for Birmingham I agree with btw, that’s very similar conditions and hours.
“The Equal Pay Act requires that men and women in the same workplace receive equal pay for work that is substantially equal, even if the jobs are not identical. The job content, not the job title, determines if the jobs are substantially equal” - this is the problem right here, the legislation needs refining.