How Is This For A Covid Vax Analogy?

I think we can all agree that the effectiveness of our immune systems vary widely from person to person. So, deciding to vax or not should be largely based on one's individual immune system effectiveness.

I tried to explain it to my wife thusly.

She was provided with an exceptional immune system at birth, but is illogically considering being jabbed.

She was also provided with exceptional eyesight at birth.

I asked her if she also intended to get glasses. She didn't respond.