However - this still doesn't affect the fact that the easiest way to transmit the virus is via the water droplets in someone's breath, so keep something over your nose & mouth to protect you and others.
Unfortunately as soon as the material becomes moist from your
breath - which will take only minutes - the virus will pass straight through. When the face covering starts to slip or itch you will touch it and then touch surfaces and spread the infection.
I think shops will ditch the queues now and just say people have to wear face coverings.
I also think this, and similar, will happen, and that is why this advice is so stupid when not accompanied by the caveat of the limitations of the different face coverings and the disadvantages of increased face touching and reduced social distancing.
Proper demonstrations are also needed of how to remove and dispose of such face coverings properly without contaminating yourself, otherwise they can simply be a vector of infection.