From what I'm seeing, this is going to become an issue sooner rather than later. The scientists involved in making the vaccines predicted from the start that they would prevent both symptoms and infections, so that vaccinated people are neither getting sick nor infecting others. This is being borne out by further testing and real world experience.
My husband and I will both be fully vaccinated by April 9. But other than a quick trip to WDW to use DVC points, we won't be contributing much to the economy until mitigation measures are relaxed. We're putting off trips to Colorado and California because spending that much time in airports and planes wearing masks is uncomfortable. We won't be eating in restaurants or attending the usual social events put on by the nonprofit organizations we support because the mask requirements and enforced social distancing detract too much from the experience to make it worth our while. This is not based on petulance, politics or the desire to make some sort of statement; it's simply what is right for us. And I don't think we're going to be the only ones.
It won't be long before businesses start to take note of this, especially when more and more people are vaccinated. Government mandates won't go on much longer, and it will be interesting to see when the burden of customer safety shifts from the businesses to the customers. I read that the Texas Rangers are going to have a section for people who want to social distance and wear masks. I wonder if the same won't be true for some restaurants - you can ask for a special section where tables are spaced farther apart and servers are masked and gloved. I would love some sort of system that allows vaccinated people to be exempt from mitigation measures, but I'm not sure how realistic that would be.