Am just curious, really, and have no wish to start a big debate on masks in schools - mine is in primary where the pupils have never had masks, though DH sometimes teaches in secondary.
Anyway, our school sent a letter this week which says:
"Advice states children are not permitted to wear masks whilst on the school premises."
Which feels like a bit of a woolly sentence - 'advice' and 'not permitted' don't seem to work together. But I wondered what the DfE advice actually does say - I have googled but it's hard to tell what applies.