Anonymous wrote:No, I wouldn't permit that.
At least your BIL/SIL are being forthright with their status.
I have a relative who is playing the "maybe I am, maybe I'm not. That's my business & I respect HIPPA!" game on social media. Very frustrating as they will be at an older relative's birthday party this weekend, which prevents my family from attending (we have a vaccinated, but still high-risk teen family member). I ran it by this family member's Ped who said no, even with a mask they would not recommend attending.
I’m assuming you didn’t tell this relative that HIPAA doesn’t mean what they think it means?