The universities generally have much longer holidays than the schools though, don't they?
Although I'm also in the UK, my daughter's secondary school has a five term year, each term being about eight weeks. They get two weeks holiday in October, two weeks at Christmas, two weeks at the beginning of March and two weeks at the end of May, plus five weeks in the summer. They get the Easter bank holidays plus a teacher training day. Any other training days are usually tacked on to the summer holidays.
The primary schools locally elected not to go with this system, I think on the basis that for the younger children, six weeks at a time is quite enough. It causes a lot of hassle for working parents - if you've children at the two schools, you've nineteen weeks holiday a year to plan around, plus any teacher training days.
The two week break at the beginning of March is a blessing and a curse. A blessing if you can afford to go abroad, as it is cheaper then, and a curse if you can't, because there is nothing geared to cater for the kids at that time of year.