And without getting adequate insurance as it's not available for CV related issues
Looks like quite a few countries on the travel list are asking UK citizens to either quarantine on arrival or not admitting UK citizens at all.
And it looks like it's hard to get cover for holidays if you have a CV related issue either before or on holiday
Still - I am sure plenty of people will do the leg work, check the small print, check they have insurance before jetting off for a few weeks in the sun....