Masks act as a crude reminder that danger is all around, that we are all potential biohazards. So, on a common-sense level, continued wearing of them will exacerbate anxieties rather than reduce them. But there is another, less obvious reason why the continued use of face coverings is counterproductive as a means of promoting confidence and encouraging people to return to normality: masks will act as a “safety behaviour” that will prevent disconfirmation of anxious beliefs.
https://thecritic.co.uk/continued-mask-wearing-wont-help-us-return-to-normal/