So I can only have my holiday from work in lockdown time when I can't go anywhere or even visit my family??
I can only speak about the country I'm living in, but we still had a couple of weeks summer vacation. The teachers basically took the stance that shuffling holidays about for one year was a) their responsibility, b) in the long run, would be a lot less stressful than having to deal with the nightmare of kids who have lost massive amounts of learning and are all at wildly different levels.
Subjects like maths are built up stage by stage like jenga; if kids miss out chunks of Year 4 maths, it will cause problems with Year 5, and if they struggle with Year 5 maths, they'll find Year 6 even harder. And kids who are having difficulties with learning start playing up and causing disruption in lessons.
Personally, I'm really glad that in this country, we all decided to just push through and accept shorter summer holidays for one year; it's a huge relief to know that the kids are on track.
KW children went to afterschool care centers in this country during the school closures, so schools really were 100% closed. The gates were literally locked.