They will probably be treated the same as Commonwealth citizens are treated now, since we abandoned them in favour of the EU.
Does Natalie Bennett have dual nationality?
Right to a family life? What's that, GrannyTwice?
No, it applies criminals with a cat!
But decent, hardworking people such as djen is talking about may have more difficulty.
Why would anyone be nasty to a Danish man working in the UK? No-one I know.
I think that, even if were against my principles and better instincts, if my child was caught in a situation like that, I would marry the child's father so that the child could get nationality. I would put my child before me and my principles every time. But I cannot speak for what other people would do.
(If that is the reason the child cannot get a British passport. Apologies if I misunderstood, and yes, I think you explained it before djen but my memory is not what it was, blame overload.)
It's not going to happen, folks!