I have visited and been served in two 7/11's today where I did not wear a mask and the staff were.
A number of nationalities came into the store, some with and some without. Nothing was said about masks.
I believe that shop staff will continue to wear masks as a mark of respect/show willing etc to their customers while I will decide if I wish to patronize an establishment that insists on my wearing one.
The answer is I will NOT wear a mask in a shop that demands them, I will just shop elsewhere!
it is now OUR choice whether to wear and the shop's choice whether to bar us!