Some of these posts are hilarious. So entitled!! As though school is just something that should be attended as and when is convenient to you and if you think it's worth your / your kids while or not!!
It's a sense of entitlement which is so detrimental to kids these days. My DH interviews loads of young people who seriously have the attitude 'what can you do for me' and then can't understand why they're not getting job offers. You go to school when it's school time and that is that. Doing anything else just shows your kids a really bad example.
So you would have no objections, then, if your DH were never ever able to go on holidays with you (and your kids, if you have them)? If he has the same attitude as your post seems to suggest, he probably wouldn't want to do anything but be at work anyway - doing anything else would be a waste of time, I presume.
Yes, a lot of young people (and many not so young people) do have that entitled attitude, but I'm amazed you have all the knowledge and the data to be able to categorically link it scientifically with those who were taken out of school for a week's holiday 10 years before they were ready to enter the workplace.
How is it showing your kids a bad example by wanting to spend quality family time with them? Work is an important part of life, but it isn't the only thing that matters. They're children, for goodness' sake - and they won't stay children forever.