Healthcare settings are a different scenario. Plenty of necessary close content.
It it were likely to achieve anything significant then I would be behind masks for shop staff. However supermarkets have remained open throughout the pandemic and this did not prevent the daily cases reducing after the government put us into lockdown. Indeed the cases were reducing significantly before the 24th July mandate for masks for customers.
Other retail opened again mid June and there was not a rapid increase in cases as a result.
I can get behind staff mask requirements for environments where there is lots of natural close contact and speaking. Shops are not one of them. The fact employees in other sectors wear masks all day is neither here nor there. Plus many health care professionals are dealing with at risk people, so clearly they need to wear masks.
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