Year 12 is a huge headache.
Government guidelines suggest teaching children in 'pods' of 12 or so. Ideally, they stay put in one classroom, with the same teacher, or the teacher(s) come to them.
Now, that sounds do-able (well, sort of) until you think about your average year 12.
How many children are doing the same set of A levels in your child's school?
It will be possible to arrange some matching groups of 12 - but not many.
And then there's the whole safety headache.
That little pod of 12 will be visited by a number of teachers, themselves circulating between groups - not great if the idea is to limit infection.
Or perhaps they'll just do the one subject ... all day.
And what about subjects that are practical? Requiring use of objects?
It's a headache.
Not insurmountable but, you know what, surmounting the difficulties is going to require cash.
My guess is that a huge inequality issue is going to raise its head when children return in large numbers. It's not going to disappear.
Independent schools will probably move to half of classes out of school and lessons going on in school being live-streamed uploaded.
State schools can't do that: they can't be sure their students have the equipment in the home to do that and they don't have the money to invest in technology themselves to achieve it.
So I think there are going to be continuing issues about inequality generating trade-offs between safety and even the kind of educational provision that is available for quite a long time.
It's tricky.