Only if you think the doctors' decision, right now, is broadly generalizable to the entire population at the moment the vaccine is available to them. To me, th

Only if you think the doctors' decision, right now, is broadly generalizable to the entire population at the moment the vaccine is available to them. To me, this is a massive leap. Broadly, however, you are right: we should be (and are!) studying vaccine uptake. It is not a wise decision to put much weight on the doctor data, as it's not been shown to be generalizable.