Just to weigh in on the subject...
My bestest mate (a highly intelligent chartered surveyor by trade) steadfastly refuses to get vaccinated. Moreover his stance has influenced his wife and children to not get vaccinated either.
As an extremely fit fifty year old, he maintains that his chances of becoming seriously ill and dying are very low indeed. And he compared the idea of compulsory vaccination in countries like Austria as being an ominous sign of a potential return to fascism...
There are parallels between his thinking and the death of the 42-year old fitness fanatic mentioned here:
https://www.theguardian.com/society/2021/nov/30/life-tragic-death-john-eyers-fitness-fanatic-who-refused-covid-vaccineWhat is most interesting is the link to the research article (ongoing) which outlines that genetics may also play a part in how a person's body reacts to Covid infection:
https://www.nature.com/articles/d41586-021-01827-wPotentially, extremely fit people may still succumb to the virus because of genomic differences - so it may not just be down to age, underlying health conditions and the amount of virus exposure.
The genome joker - which may dramatically increase / decrease our susceptibility to Covid-19 - is not easily known to any of us. Therefore, if this risk is also part of the equation, the logic to being vaccinated and wearing a mask (as a social responsibility to lessen transmission to others) becomes overwhelming.
In comparison to the genome joker, I'd always take my chances with the small risk of adverse serious side effects / death (because of embolism / myocarditis etc) associated with vaccination.