Maybe because the more you're old the more vulnerable you are to... Anything? Also, maybe we're discovering just now how bad this virus is >>While coronavirus deaths have primarily been in those above 50-years-old, the disease has also been sending younger people to the ICU in larger than expected numbers - and in some cases, claiming younger victims. In France, doctors have reported that 50% of ICU patients are under 60-years-old, while in the Netherlands, half are under 50.Nearly 50% of critically ill coronavirus patients in Brazil are under 60 https://www.zerohedge.com/health/25-year-old-california-man-no-underlying-conditions-dies-covid-19 "Maybe"