Problem with so many now running around maskless there are some in that group whom are being a---oles to those whom are still wearing a mask.
Unfortunately this has been happening the whole time, even prior to the vaccine. And of course it's still happening.
There are several reasons for vaccine hesitancy or refusal, including conspiracy theories, distrust of science, believing that if you have had Covid you don't need the shot, etc. A large enough percentage in the US believe these, and it will likely prevent herd immunity, unfortunately.
Medical science is virtually unanimous in its recommendations. There have been some funny reports of chiropractors saying things like women will become infertile if they stand next to someone who has had the vaccine. Chiropractors are not, of course, M.D.s.
John Hopkins, one of the world's best hospitals, published this in an effort to reassure people:
https://www.hopkinsmedicine.org/health/conditions-and-diseases/coronavirus/covid19-vaccine-hesitancy-12-things-you-need-to-knowIf one does not believe in science, however, one will not believe in what Johns Hopkins has to say.
Getting back to the subject, however, it does address side effects, the question of whether people who have had Covid should get the jab (they should), and the idea that you can get Covid from receiving the vaccine (you can't).