DH is that adult child. He had a great life in the UK and only left because of me.
I feel guilty about it, from the perspective of his ageing parents (who are lovely), but happy for our DC, who are having the sort of childhood we both had (sheltered, happy, social, idyllic, nature-filled, beach-based, etc).
However, I am very realistic that they may well end up going the other way as young adults, as so many young people in Australia and New Zealand do - to London, Europe, and increasingly other parts of the world.
That's almost certainly going to happen.
I'd love to live near them both and any DC they have, but most important is that they do what they need to do. That's easy to say and write; incredibly hard to live (as a parent), but I hope I can be as understanding and supportive as both my, and DH's, parents have always been. 💗