> If you've got elderly loved ones you want to keep safe, you'd need to vaccinate them, not yourself.
If the vaccine substantially reduces viral load, and degree and period of contagiousness for those who receive it, as well as reducing the risk of illness (which AFAIK it does, while falling short of sterilizing immunity), and you are the elderly loved ones main interface to the outside world, getting vaccinated on top of other precautions provides a real benefit.
OTOH, if you have to choose one to be vaccinated, it's them, not you. If you do this for lots of elderly family members, getting yourself vaccinated may be better than getting any one of them vaccinated, though. And, of course, of you are doing an off the books pre-approval use of the vaccine, accepting the risk of unexpected side effects for yourself may be more reasonable than imposing them on, or even suggesting them to, someone else who may be in a more fragile state.
If the vaccine substantially reduces viral load, and degree and period of contagiousness for those who receive it, as well as reducing the risk of illness (which AFAIK it does, while falling short of sterilizing immunity), and you are the elderly loved ones main interface to the outside world, getting vaccinated on top of other precautions provides a real benefit.
OTOH, if you have to choose one to be vaccinated, it's them, not you. If you do this for lots of elderly family members, getting yourself vaccinated may be better than getting any one of them vaccinated, though. And, of course, of you are doing an off the books pre-approval use of the vaccine, accepting the risk of unexpected side effects for yourself may be more reasonable than imposing them on, or even suggesting them to, someone else who may be in a more fragile state.