A little off topic, but I wish we could stop using this nice-sounding "hesitant" euphemism. Hesitant implies that people are weighing options and open to changing their minds. With the amount of time they have been available and the overabundance of evidence that the COVID vaccines are safe, effective, and that they decrease hospitalizations and death, I find it very hard to believe that anyone is still "on the fence…
For people who've had Covid before, vaccine is simply redundant. (If you disagree, please provide sources / data for your view.) Of course, getting vaccinated would increase their immune system's response, but so would for someone who was vaccinated a month ago... at some point, it has to be "good enough" for normal life (not 100% safe anyways).