Have any of your schools given you any indication when your y11 will leave for good?It's normally early June with study leave from whit week but obviously this year is different.
The grades have to be submitted by mid June. Will they go then? Would you want them in school after that? The behaviour would be atrocious if they kept them in. Unless they finished a course for Alevel.
Prior to covid I had planned to take mine for a cheap holiday. Not now though.