CDC Guidance

So, the CDC recently issued guidelines that fully vaccinated people no longer need to wear masks in most indoor settings.  A seemingly great announcement that indicates the beginning of the end of the pandemic.  Or, in my humble opinion, an obvious politically motivated announcement that is only going to create major confusion and conflict.  For starters, there is absolutely no obvious way to tell who has been vaccinated and who has not been vaccinated - and do we really expect the 50% of Americans who haven't received a first dose to "honor" the guidance and keep their masks on?  I highly doubt it.  And then we have the question of where and who is going to enforce these guidelines?  Some places are going to still insist on people wearing masks, some are not and this is going to cause mass confusion and a lot of trouble.  With still such a huge proportion of the population not vaccinated, I want to continue wearing a mask in any setting where I'm close to people.  But I'm sure some people will not, regardless of risk or whether they're vaccinated.  I think Walmart today announced that you no longer need to wear a mask to shop there - but of all the places where unvaccinated people are most likely to be, this would be right up there.  So I will definitely continue wearing a mask to shop there.  Besides, if Washington State still has a mask mandate then wouldn't that have priority over any store guidance?  The only feasible way I see of this guideline working is if there is an obviously visible way we can identify people who have been vaccinated and who have not.  Perhaps we could use an armband, with a Star of David on it...