In other words, the coronavirus is the perfect teacher of responsibility. The coronavirus is contagious days before its symptoms appear in you. You do not know when you become infected! During that time you can infect others without knowing it and without them knowing it (because they do not know when they become infected, either), and they can (will) very quickly infect others and on and on and on and on. These are the things that make the coronavirus very dangerous. It is extremely contagious, everyone can unknowingly infect anyone else, and it can kill you. In other words, if you mindlessly endanger yourself, you mindlessly endanger others. If others recklessly endanger themselves, they recklessly endanger you. To echo Lakota wisdom, the health of one is the health of all, and the illness of one is the illness of all.