FarNorth
I wonder about the use of masks by secondary pupils in school corridors and on school transport.
They will have to repeatedly put them on and off, during the day, handling them and stuffing them into their bag or pocket.
Don't get me started on schools! Why the same rules applicable to the general public aren't being enforced in schools (at least secondary schools) is beyond me.
I think the idea is that masks will, at least, cut down on airborne transmission, even if they have been infected. As long as the wearer doesn't touch anything which somebody else will touch, the risk is minimised.
In schools, pupils keep within defined bubbles and aren't sharing books and equipment. The danger will come if they start hugging each other or having lengthy conversations.
It's known that the main means of transmission is by water droplets in the air. The viral load on hard surfaces, such as masks, is much less.