I'm school leadership and as you can imagine, my colleagues and I have been talking round in circles over this for the last few days.
We're completely conflicted, we want to be able to educate and safeguard students properly again but we also want to care for staff properly. We know we have a number of very anxious and/or vulnerable staff who will find it very difficult return regardless of what the "requirements" are.
So far, we have only managed to get to a point where we can "re-open" for very small numbers of children, not really offering much different to we're doing currently. ("Re-open" because we never actually closed)
However, we also can't see that we'll be able to do anything differently if it's all postponed until September.
Or maybe people who are resisting it think we should never go back? Obviously not, but we have intelligent (honest!) people working on this and haven't yet managed to find a way.