I think average age of those dying is 81 is because it becomes a lot more dangerous if you are very old. I think world wide mortality rate is 20% in those who get it and are over 80.
I wouldn’t be surprised if schools and universities shut for a few weeks.
I wouldn’t be surprised if remote working was encouraged soon. I know I have mates who work in trading who have 50% of the office working from home one week and 50% the following.