@Isawthathaggis you can't be serious about the level playing field?
Some schools are (I am told by teachers on here) doing loads of teaching, some are doing essentially zero teaching.
Some have y1 (or whichever) back, others don't.
Some children have parents who are working full time and flat out at home or out of the home. Others have SAH or furloughed parents who can dedicate proper time to teaching them.
Some (like mine) have a house full of books and are getting tutors and/or workbooks etc . Others want to learn but are stuck with whatever the school dishes out.
Some live in homes where life is chaotic or stressful right now, and noone from school is checking in with them.
There's no level playing field here.