Some exposure has actually proven to be beneficial. Our immune systems are strengthened by fighting germs, they just can’t be overwhelmed.
“After a coronavirus vaccination, exposure to the circulating virus will trigger an immune response to protect against infection and at the same time will also boost your immunity, said Monica Gandhi, an infectious-diseases expert at the University of California at San Francisco.”
I work in a casino and I’m around thousands of people a day, I haven’t been sick yet (not symptomatic anyway). That’s true for most my vaccinated coworkers, we’re exposed to it daily so our only explanation is strong immune systems due to daily exposure.
Being too cautious could actually be counterproductive.