I could just see you in a hospital bed, at the age of 66, having been told you are about to immediately die from whatever virus, when a Doctor runs in shouting he has a drug, fully proven, that will save your life. Obviously you then ask for proof that enough testing has been done on the over 65’s and that the appropriate paperwork has been submitted and peer reviewed by not only the MHRA and EMA, but each of the EU countries just in case.......there is no such thing as a risk free life...sometimes you just have to go with what the medical people tell you......
lol
some of the medical people were threatened that if they *followed* the guidance from Pfizer (and gave their patients the doses that had been arranged with them) that they’d get into trouble pete
So to correct your hypothetical scenario - you as a 66 year old are sat in hospital, waiting for the treatment that you and your doctor had agreed, you get given one half of it and then some wild-haired toff storms in and says “crikey chaps, there’s not enough to go around” and gives your second dose to a 65 year old.
He flounces off to spend more time with his dad (who did get two doses) and then two grim faced twiglet-men assure you that everything is going to be alright whilst putting duct tape around your doctors mouth, and mutter about tough choices.
No one is able to tell you, when you ask, whether or not you are actually protected, since they are too busy slapping themselves on the back and telling the local paper (whose proprietor had two doses) that the other treatment you could have had definitely works.