Earlier quoted context omitted.
I have never worked an hourly paid job in the UK that has paid holiday. I'm not sure they exist, it's sort of what hourly pay is - you get it when you work and not when you don't. Personally I'm not sure it's something that makes sense, it should just be factored in to the wage. Most hourly paid jobs I know of don't have regular hours, even - how much do you pay for a week's holiday when some weeks the employee works…
Hang on - paid holiday is a legal requirement. https://www.gov.uk/holiday-entitlement-rights This applies to people on zero-hour contracts as well.
I've either done short-term stints or been salaried for over a decade now.
Cheers for the link!