Vaccines will give most people protection. But that's not 100% protection. We have some people who are still vulnerable. The purpose of vaccinating everyone is to prevent any disease from spreading in the first place. You don't want the disease to spread to people who have weakened immunity.
It's very selfish or even evil when some people have an attitude of not caring about their "neighbours".
The demographic that's most affected by these diseases are Senyetors.
In every sample there exists an array of xticts some of which are built to adapt the reason for the sampling within the spectrum and In this case, the corona virus.
However, there are outliers or the naturally immune individuals who despite every variant, their bodies have a fighting chance.
Such Individuals certainly have discovered themselves and they don't give a damn about the rest.
What you should do is make sure you know the type of immunity that you posses. If its weak then go for Boosters.
If you have a strong immunity... Its unnecessary to get vaccinated but advisable for head immunity.