What makes you so sure it "will" happen? (Sorry not picking on you - this is to al who asserted this).
I have been teaching for about 25 years now, and pretty much since I started I have been hearing speculation about this change.
And nothing has changed yet. The prospect used to really upset me and stress me out, but I have learned over time to stop worryintmg about it. I will worry the day it's announced it is actually happening.
It would be a mistake, in my honest opinion, due to the impact on a workforce already in recruitment crisis.
Honestly, in the large secondary comprehensive I work in, I am definitely in the top 5% of people who love their job. Colleagues and management often comment on my energy and positivity, my willingness to go the extra mile with enrichment activities etc. I get annoyed by those teachers who whine and pretend our job is the hardest one ever, because in my view it is a joy and a wild privilege to educate young people.
I am not saying this to show off, but to put what I am about to say in context;
If they significantly shortened the summer holidays I would look to leave education. It would break my heart, and I have no idea what I would do instead..... But tho not the hardest job in the world, it is a job that brings it's own unique challenges, and summer break is essential, in my opinion, to my ability to do my job in the way I want to while maintaining my mental health. And if I, who love my job, feel like that, what the Hell do you think this would do to teachers already on the cusp of leaving the profession.
But it's ok, because there are queues of eager young teachers wanting to take our places......Oh hang on......
Seriously, the outcome of this would be schools full of supply teachers because of unfilled vacancies. And I guarantee you, more learning would be lost through that, than through kids having an extra two weeks off over the summer.
On a separate note, I also think that kids need and deserve the break too. I have such joy filled memories of the long summer holidays as a child - do we really have the right to take that from them. Plus, many families actually LIKE having the time to spend with their kids - I am overjoyed to have so much time with DD, for example.
Yes there are of course families who sadly can't be trusted to, or who for reasons beyond their control cannot, care for their kids appropriately. But should we really make a policy that robs the majority of treasured experiences based on this minority? Surely nstead we should redouble our efforts as a society to find other ways to heal and support these struggling families, not just fob them off with the sticking plaster of a couple of extra weeks in school. (Which is a bit like sticking them in the workhouse as a solution in a Dickensian novel, really).
But as I say, I have heard this so often, I don't think I'll worry till it happens.