Very much an opinion piece but worth a read if you're so minded and feeling critical.

https://twitter.com/_/status/1363549521842737158

Germany's school opening an 'experiment'.

The final paragraph struck me somewhat: -

The consequences of such a herd immunity policy—combined with only partial immunisation—are openly stated by the paper: “With increasing immunity in the population, the probability of the emergence of [variants created under high pressure of selection] increases. This can be expected soon in countries with declining population susceptibility.”