PLEASE wear a mask

I know the UK government is saying they are not necessary. I also know the various governments have been very slow to update old info - or do much of anything in a timely manner. This is not a time when you can depend on the government to tell you in a timely way (if at all) everything you need to know to keep you safe. If you go where there are people, you need to have a mask on. Homemade masks are not perfect, but they are better than nothing.

https://www.nap.edu/read/25769/chapter/1

This is not a time when you can depend on the government to tell you in a timely way (if at all) everything you need to know to keep you safe.

100% this!  You really can't be too careful.