The numbers of people dying from Covid. Germany has 100,000 dead people and ~5000 are under the age of 65. But you cannot stop there, you need to incrementally look at age correlated data to see a picture.

Here is a start:

https://www.statista.com/statistics/1105512/coronavirus-covi...

Covid is a serious disease, but we are talking of mandatory vaccination and I don't think that it can be justified for younger age groups.