It is generally accepted that the six week summer break for schools is due for reform and can no longer be justified, the whole education year is in need of change even the universities calendar needs to be better planned. As a worn out, semi-retired teacher myself, don't misunderstand me on this, existing holidays for teachers can be maintained in a new academic year, there are models that can be adapted.
There is a case for more public holidays, each nation within the UK can have its national day and perhaps a UK day in late September to balance things out.
Appeals to governments of whichever party tend to fall on deaf ears as the case will be business can't afford it!