Sure human behavior is difficult to predict.
It might surprise you how many industrys depend on such projections fo survival.
I believe it is called the American Actuarial Society.
You may be surprised to know that I am an actuary and a member of the American Academy of Actuaries and the Society of Actuaries.
Actuaries do depend on incidence rates to understand the cost of a risk but that data is only valuable after the fact. Right now it is just numbers that are changing daily. There is nothing that any actuary would use at this point to develop a meaningful statistic.