‘Nobody has the right to ask you why you are not wearing a mask’

• MAYOR Sadiq Khan has announced that wearing a face mask will remain mandatory on London’s tubes, buses and trains.

Yet the government’s UK Covid-19 guidance and support states that if you have an age, health, or disability reason for not wearing a face covering you do not need routinely to show evidence of this.

You do not need to show an exemption card or get a letter from a medical professional. Nobody has the right to ask you why. Your medical records are private.

DES MARSHALL, NW3