Hmm.. sorry... I thought they're like woolworth or Walmart equivalent. My bad
No worrries.
FYI, Costco is the opposite of Walmart in that they pay they staff well, provide them with benefits and they are closed for every single major holiday.
They have certain rules and the latest one requires ALL to wear masks while shopping there. It's not difficult.
I don't get why Starbucks, etc doesn't do it.