“This person did it and he’s fine!”
Your partner always has stories of a friend who attended this event or broke social distancing protocol in this way and is perfectly fine. Okay…that doesn’t mean he wasn’t at risk. If he’s fine, it’s because he got lucky, and certainly not because he did the right thing. If we know someone who never uses condoms and never got an STD, do we see that as proof that condoms are unnecessary?