Honestly, I can't help but think those making up guidelines in government just aren't very bright. There seems to be a huge lack of ambition and support for schools coming up with innovative solutions given coronavirus isn't going away and there is a very real chance of local lockdowns (see Leicester).
I watched the independent sage committee (very much recommend it, very interesting) and they were saying why haven't they thought of other solutions than schooling as usual e.g. using leisure centre halls to enable large, socially distanced lessons. Village halls, outdoor forest school providers etc. Using spaces where it would be easier to reduce transmission than just everyone back as normal in school.
Why aren't they considering a blended approach, which allows home learning and children in school in a socially distanced way some of the time, with perhaps some other outdoor learning as above? This has been done in other countries, and in private schools. It has the advantage that if a local lockdown happens, it's not a total sudden change for the children and teachers aren't scrambling to change everything at once. It allows teachers to be better protected and hence less likely to be off sick for weeks. All it requires is resources and a bit of clever thinking.
I can't see that sending everyone back pretty much as normal (which is essentially what the guidelines are saying) and then a total lockdown again when infections spike is better for children than a blended approach which is more likely to keep infections lower and less likely to result in constant change and disruption.
I have to say the local schools where I live seem to have done a pretty good job with regard to year 1s and 6s - very sensible ways to reduce transmission, small bubbles, staggered drop offs and pick ups to reduce parents at school gates. But they're using outside space that will be more difficult to use in the winter, and with more children coming back to school.
Schools here have also been focusing on wellbeing and mental health which seems hugely absent from the national discussion. Children aren't oblivious to how coronavirus is spread and my DD is very aware that, while she is unlikely to be very ill, she could easily pass it on to someone who could be extremely ill or die. What about children whose parents are vulnerable? Can we really expect them to return to schooling as normal in September knowing they could expose their parents?