Except vaccination is a prime argument for not having masks. Especially since we are at a point where it is reasonable to assume that anyone who wants a vaccine has gotten one and the remainder are on the fence or are choosing not to get one (at least in the US). Thus, the argument for wearing masks (to protect people) is no longer relevant because those who have not gotten the vaccination have accepted the risk of the disease and have decided they are protected enough. EDIT: This acceptance indicates that there is no longer a need to wear masks as a form of protection.