Vaccines are only to prevent it, it doesn't mean we are immune to associating with people who have been exposed to Covid-19, in my country there are also those who have been vaccinated but eventually contracted Covid. -19, a policy like this is suitable for countries with a low level of Covid -19 while countries whose Covid is still increasing, of course this is not the right policy
At this point, we should remember that the United States is the country which has the highest number of confirmed COVID 19 cases across the globe. And one of the reasons for this high number is the fact that large groups of people refuse to follow safety protocols or to get vaccinated. Now everyone knows that getting two doses of the vaccine doesn't make you 100% immune to the virus. But here, these people are using it as an excuse to not to wear masks and follow social distancing.