Well, it’s not really about stopping you from getting it. It’s more about people that are contagious from spreading it. Anything that inhibits the spread of droplets carrying the virus helps. ...doesn’t have to be perfect.
I do have issue with making this an “order”. Just “urgently request” it, people will comply due to social pressure. Making it an “order” is out-of-bounds, wreaks of tyranny.
Wolf actually “requested” that businesses deny service to unmasked patrons, and then implied there’d be hell to pay from state licensing agencies if you don’t comply. Quite weasel-y.