I'm also in the "why don't you take it first" group personally because I'm not at very high risk personally. But my 80-something mother is bucking the vaccine and she should absolutely take it ASAP because of her age and comorbidities, but here we are.
You know that by not taking the vaccine, you increase the chances of infecting your mother even if she has taken the vaccine?
That's only if they're in physical proximity. They could be sensibly self-isolating
It has not yet been demonstrated that any of the vaccines eliminate transmission.