A few of the posts above remind me of some dystopian sci-fi 'civilisation' where all those who don't meet certain standards of physical or mental fitness are 'terminated'. We may be old, we may have some medical conditions, but we were, and expect to continue to be, active members of our community
As John Donne wrote, no man is an island. The lifestyle of the well-off is sustained by the work of the rest. The worst affected areas of London house the people who clean the offices, and the houses of the wealthy and all the other tasks which we would rather not do, such as caring for the previous generation who made our lifestyle possible.
A couple of months ago Singapore was mentioned alongside S Korea. It then turned out that their immaculate city depended on 200k immigrants who were housed in dormitories in tower blocks with the inevitable consequences. Ditto in UAE etc.
The Greek islands, like the islands up here, are torn between those who are desperate for the visitors to return, and the elderly residents who are terrified, with good reason. Many of the Greek islands have had no cases at all.