Face masks, including in banks and government buildings are optional.
If you choose not to wear a mask, no one will accost you. Likewise, is you choose to wear a mask, no one will think anything of it.
If you have pre-existing conditions, don't be foolhardy and refuse a mask. If you don't want to wear one, no one will stop you.
It is a personal choice that no one will criticize you about. To each their own.
