My sister’s wedding is in November and I just found out she’s not planning to require guests to wear masks or ask for proof of vaccination. Her ceremony and reception are entirely indoor and there will be hundreds of attendees. There will be kids under 5 years old (unvaccinated) attending. I kindly suggested that I’ll purchase masks to pass out to guests as they arrive and she declined my offer. When asked why she’s not requiring guests to wear masks, she answered that she’s following CDC guidelines. However, when I looked up the guidelines, it clearly states masks are recommended in indoor venues where there are kids or unvaccinated adults. She also doesn’t know for certain that all her adult guests are vaccinated. I told her she is putting her niece and nephew (my kids) at risk but she still doesn’t care and won’t budge on mandating masks. I’m the MOH and she even went as far as telling me not to attend the wedding if I don’t feel comfortable. I’m just trying to make sure everyone stays healthy. Am I being unreasonable? What would you do in this situation?