I agree with you here comes the sun.
I am a scientist (not that should matter) it’s just I do know my way around data, epidemiology and research. And I’m not convinced at all that we know what the risk is around children and schools. Conclusions have been drawn too quickly to say children don’t really transmit that often. I fear that we will never really know as there is so much obfuscation.
For example, near me I happen to know that there is no contract tracing to speak of in the local schools. If there is one case in a child, it is likely that no one in the class, teacher or Head will even be informed so it is only if the parents tell them. If there are two cases, they will be treated as two cases in individual households, who likely contracted it in their individual households (and listed as ‘household transmission’).
As 50% of younger children are aymptomatic. That class could then potentially have spread to say 2 more children, but their parents will develop symptoms and as those children don’t, their role in that transmission will not be seen at all.
So in this example - 4 cases in children in a class who transmit to their families. Who passed it on to each other. Only 2 will be symptomatic. These will be ‘presumed’ to have got it from their families. Even though no meaningful testing to see ‘who transmitted to who first’ will occur. 2 will be asymptomatic, and their families who contract the virus will be presumed to be nothing to do with the class at all.
You can see how this small scenario would not even appear on any data, any category that even mentioned school spread.