I moved to Germany over 40 years ago and brought up my children without any help from my parents. My in-laws were there for me, but they were very old.
For me, it was extremely important to give the children roots in the area we lived, whilst they learnt about the English language and culture that I was keen to pass on to them. I took a newsletter from a bilingual group and remember very clearly an article by a half-Greek, half-British lady who was struggling with her identity because of the dual upbringing she had had. It was my aim to prevent this happening.
Our sons therefore feel absolutely at home in our little part of Southern Germany, but are all proud of their bilingual upbringing and are carrying the idea on to the next generation.
As they all live a long way away, only now do I realise what a wrench it must have been for my parents, although they always encouraged adventurousness.
As regards the opening comments from Lillie, I don't think that there ever was a danger of <<they picture the people back home being as they were when they left them, but their lives move on too and things change.>>
Even back in the 70s and 80s, I managed to keep up with changes.
It's not a question of where you live, but your attitude, I think. There are people who still bemoan the changes such as the way people bring up their children nowadays and the intrusive technology, but the UK is definitely no longer the land of Midsomer Murders and cucumber sandwiches. Even from here, in the middle of the Continent, I can see that, but some people living in rural Britain just refuse to see it.
(PS this is not a rant about gransnetters who comment on modern life and constantly reminisce about the old days. Just by dint of the fact that we're on this site means that we are accepting new technologies and lifestyles!)