I'm going to cut straight to the chase here, having only read the first 2 pages of this 6 page topic:
What you always find when you see replies to this perennial question is a 'falling into camps':
You have the parents of DC who do regress academically in 6,7,9 weeks who would dearly like the holidays to be shorter and more evenly spread;
You have the parents who spend 2 weeks at a villa, 2 weeks at their Cornish holiday home, the DC spend a week apiece with the 2 sets of grandparents and spend the rest at Science Camp/Stagecoach or whatever who wish they had 'longer to enjoy their holidays away the children's' company';
You'll get the home-edders who couldn't imagine not being with their DC and interacting with them 24/7 and can't understand why it doesn't suit everyone;
You'll have the SAHM who loves not having to do anything structured, like get the DC off to school/packed lunches/homework for weeks on end;
You'll find certain sorts of DC who not only have heaps of 'things to do' but are situated in a physical location that allows them to do them;
You'll find some DC who will spend 6 weeks glued to a screen with at-work parents who can't be there to chivvy them out;
You'll get the working parents with no reliable or affordable childcare available who are tearing their hair out finding cover for the holidays.
The various camps will never find accord.
As an aside, you'll also find some of those wanting 3 months holidays complaining bitterly about the occasional 9 week half term that allows this!
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