To me the problem with these kind of blanket decisions is: (a) The reasoning is often either not communicated, or is poorly communicated. (b) It takes away a

To me the problem with these kind of blanket decisions is: (a) The reasoning is often either not communicated, or is poorly communicated. (b) It takes away a risk/benefit decision from people that are mostly capable of making on their own. Don't want to take the risk of a rare side effect? Wait for an mRNA vaccine. Think the risk of COVID for your particular scenario is higher? Let me accept the risk. There isn't a way that a single model of the scenario produces the 'correct' or 'safest' decision for everyone. Also, there is no good reason that a person of sound reasoning cannot make this decision for themselves.