i’m fully vaxed. The issue here is about the business. I know big companies are strict with checking the vax cert but for small business including massage shops?

The tricky questions are:

How will owners have the power to push away people?
What if it becomes a threat to refuse those people?
Will do shop owners really check on this certificate or qr code?
How will they maximise their profit if some of their costumers unvax?