Change the list of where masks are required to include museums

The UK Government's list of places where masks are NOT required to be worn includes museums. I think this is wrong and I am looking to persuade the Goverment to change this rule. Museums vary in size and space, and a blanket rule where visitors are not required to wear masks doesn't protect staff and volunteers in these venues. There are more than 50 attractions in the UK that are underground. They are perfectly able to reopen under the current social distancing guidelines, but both staff and visitors are at risk where visitors are not required to wear masks. All the medical advice suggests that masks do not protect the wearer. They are worn to protect others when the wearer might be infectious. Protect museum staff. Covid 19 has not yet gone away. If museum staff have to wear personal protective equipment to protect visitors, make it compulsory for visitors to wear masks in return.