I do shop at a Morrisons, and when challenged for not wearing a mask my response of "I'm exempt" has always been greeted with calm acceptance.
Interesting though that they claim to be part of the Hidden Disabilities Sunflower Lanyard scheme as they weren't a few months ago. Maybe my attempt to find out led them to investigate and join.
https://www.manchestereveningnews.co.uk/whats-on/shopping/morrisons-yellow-sticker-no-mask-19861555 suggests that this isn't a corporate policy. Not even sure whether that was a Morrisons but if it is, it's a single store and someone's probably going to get sacked.
I do shop at a Morrisons, and when challenged for not wearing a mask my response of "I'm exempt" has always been greeted with calm acceptance.
Interesting though that they claim to be part of the Hidden Disabilities Sunflower Lanyard scheme as they weren't a few months ago. Maybe my attempt to find out led them to investigate and join.