How is mandatory vaccination even supposed to work? For Germany you would have to send 80 million people a letter that tells them to proof that they took the jab. Then you probably have to go to a pharmacy for them to check you vaccination documents and generate a code that you can use as proofs. Then you have to have tons of civil servants that do correspondence with people that don't react to that letter and send the bolice after the schizos.
This will take more than a year and a billion euros easily. After that time you theoretically would have to start over again because then everyone needs booster shots.
It would make way more sense and be more humane to just put that money into hospitals to give them the capability to treat everyone.