Yourself I would assume as it would be your personal choice to go, knowing you have the quarantine for 2 weeks when you come back. Given we have such massive unused testing capacity there must be some way we can get people to be swabbed when they come through the airport - for example, returning...
The passengers that go through the U.K. are infinitely higher than Greece though, it’s not really a fair comparison. My point was, the danger that incoming passengers do possibly still pose. Don’t get me wrong I think this quarantine idea is stupid but shows you without fast testing air travel...
Apparently Greece trial ran and tested everyone on a flight from Qatar, 90 passengers on board and 12 tested positive. We have at least one flight from Qatar to England every day.
https://www.keeptalkinggreece.com/2020/06/02/greece-flights-qatar-coronavirus-passengers-positive/