evidence: Between 15 July and 22 September there was an 12-point drop (from 72% to 60%) in the number of people in the UK who said they were "wearing a face mask when in public places". [...] It says: "We expect and recommend that members of the public continue to wear face coverings in crowded and enclosed spaces where you come into contact with people you don't normally meet. For example, on public transport. You should use your judgement in deciding where you should wear one." [...] In Northern Ireland face coverings are no longer compulsory in places of worship, or for students in school classrooms, but they must be worn on public transport and in shops and hospitality venues.