Anyone can spread it, though. Kids seem to spread it less. Also, the longer this hangs around the more chances it will have to evolve into a form that can harm more demographics. We should want to get rid of Covid-19 as fast as possible. Finally, although many people get asymptomatic infections, this isn't all about death rate. Many many people are suffering brutal damage even if they do survive. This thing targets multiple organ systems and can leave permanent damage.