My DH, who is 70, went to the supermarket as he didn't want to put other people in danger doing our shopping. He did feel very vulnerable as people were not taking the social distancing seriously. DH sister sent him two packets of face masks from USA, (made in China) because they don't need them (according to DT) and now he feels safer. We are sending the second packet of mask to all family members, especially those working on the front line.
The nurses and doctors in the family are telling us to wear masks or at least cover our faces when outside. They know more then anyone what is going on and I for one trust them and will listen to their advice more then the government's, who is proving they don't have a clue.
I think from a physiological perspective, the government should tell the nation to wear masks because they are helping to save people's lives by preventing the virus from spreading, and masks are a visible indication that everyone was doing their bit. In WW11 gas masks were given to every citizen, thankfully they were not needed but the nation had to carry them everywhere just in case.
The government has not issued face masks because they have none,and I suspect no money to pay for them. The only thing they have plenty supply of is bullsxxx and their fantastical answers. Demonstrating once and for all that they certainly do not show any respect to the NHS, for the last ten years and now they are found wanting.
So please if you are out and about, just wear a mask of any kind, if it is not for you , then do it for front line workers before it is too late for them.