If you die of Covid-19 you were already dying. This illness was simply the straw that broke the camel’s back.
99% of fatalities in Italy are among people with a prior illness. About 50% of the deaths were people suffering from at least three other illnesses.
The average age of fatalities in Italy is over the median life expectancy of an Italian man.
https://www.bloomberg.com/news/articles/2020-03-18/99-of-tho...
We may have a wave of elders die this year if we don’t quarantine them immediately. (And the next year or two we’ll have fewer elders die than ever.) But there is no need to quarantine the whole world. The young and healthy need to start building up antibodies.