@Hester54 why am I sad? On an emotional level because I feel very much European, I love the fact that although we are different countries we are all part of the same whole. I'm sad about what the referendum and everything that has followed says to the rest of the world about Britain. I'm sad that my local area, which has received huge levels of EU funding and is quite deprived, voted out despite clearly having no idea of the impact on the place that they live.
On a practical level, DH is self employed and works a lot in Europe, it's where a significant part of our income comes from and right now we have no idea if that can / will continue post Brexit, even if it does the red tape around travel and work will be a massive PITA.
And we had always planned to retire somewhere else in Europe; it looks like that too will no longer be available to us.
Other people's situations are far more complex when there are spouses / partners / children with different citizenships and passports.
I guess if you're someone who lives in Britain with no plans to leave, is married to someone British, works in Britain, goes on holiday once or twice a year and plans to retire here then I can see why perhaps you wouldn't think it's a great loss.
But to an awful lot of people for a myriad different reasons, it is an incredibly sad day and a day which means less freedom going forward.