My son has had to go in for extra A level revision days during the last 2 holiday breaks and again next week in half term. I applaud the teachers taking their time ( I know its paid) to give the children an extra boost. My now Year 9 gets homework during the holidays. Nothing wrong with spending an hour here and there for a bit of school work. In my opinion, after all the lockdowns and Covid, it won't do them any harm.