I didn't know that. Don't they have CCTV in some nurseries so the mums can have a look at what's going on via their phone?What I get irritated by is care homes (and other care organizations ) that take the position that cameras can't be allowed because it infringes on the privacy of the carers. Now there, I think you have a real case to make the point that if it's all right for shop workers (for example) to be watched all day then it's definitely OK for care workers to be watched as they perform their jobs.
It's also interesting to consider whether moving dementia residents who can no longer communicate and are at the 'mercy' of the carers into dormitories - like a hospital ward - rather than private bedrooms would, in fact, be a option that would be more easily supervised.
Would I choose that for my mum...? I don't know.