Thanks crafting, I am so happy to hear you love Switzerland. I was just a kid when I came to work in London, fell in love and married a Brit, and lived all my adult life in the UK until retirement. I have been British since 1973. Our adult children and so many family and friends, and of course GCs are in the UK- and we still have a flat in the UK and visit several times a year, and may well return at some point.
The 'us' here perhaps is mostly linked to the fact we live here on UK pensions alone. We have lost 40% of income due to poor £ exchange rate since we moved here- and if Brexit goes through, and the pounf plummets steeply, as is forecast, we will be up creek without a paddle. So this is why I say 'us'as we will be directly affected by the decision. And for our British adult children and grand-children even more.
If we do decide to come back at some point- it would be nice to be a decision we make for the right reasons, rather than because the very low £ forces us to. Hope you understand.