Those of the 2.2 million ex-pats (migrants) living in the EU who have been there less than fifteen years and are not married to a local may well lose their residence rights. There are plenty of those on Corfu.
The EU ruled that phone companies could not charge outrageous rates for calls within the EU. Guess what will happen if we leave?
I know that these are, in the great scheme of things, relatively trivial issues, but I'm sure there are others. People right across Europe cannot understand our hostility towards what they regard as a common family. If we leave the atmosphere will not be kind. Legally, the EU could demand visas for entry, as could we. When I did business in Poland I had to queue for hours before every trip at the Polish Embassy. I don't fancy doing that to go to San Stef!