I can remember coming back to school after a two week absence due to illness, I struggled to catch up the things taught during that time. Got kids at school then they should be in school not on holiday. Yep, it’s wrong that holidays cost so much more in school holidays but, until some sort of legislation is passed to prevent this, not likely of course, don’t have expensive holidays. Go camping, days out, save for a holiday every second year., got grandparents who live in an holiday destination then go for a visit. Education is so important and we all take it for granted. I worked with a person who took her son out of school 3 times in one school year because, he has a right to have a holiday!! He then didn’t see school as important at all, refused to get out of bed, refused to go if he didn’t feel like it. She just couldn’t see that she’d told him school wasn’t important because she’d taken him out when it suited her. I believe the fines, in England, are now really hefty for taking your child out for a holiday. But if it’s still cheaper to go away in school time I’m sure people will still do it.