Its the same assumption we had a couple of Years ago, a friend counter signed for the passports, we got all the way to the capital to file for them for the kids, and as we were about to walk in, i said, there's no going back once they are aware they exist, the wife thought about for about 10 seconds having spoken to her friends in the UK, and Europe in general over the prior months, and said, no, i am not doing that to them, thus our kids don't have UK Passports, they have citizenship by being born but that data isn't shared︀ and i have zero interest in chaining them to that decline.
Once the news broke︁ yesterday, she remarked, well if they MUST go to the UK for a minor education︂ aspect then use one of their other citizenships.
Only remaining issue is my grandchildren by︃ default are not British, so for that they HAVE to give birth in the UK︄ but thats easy enough to achieve with cross-channel train/ferries in 20-30 yrs and private hospitals.︅
By then the UK SHOULD start to turn around but for the next 15 yrs︆ its terminal due to the refinance cycle of the debt and the demographics of the︇ country.