Dear Prudence,
My sister (18, she/her) and I (23, he/him) recently joined in on a vacation with our younger cousins, who are 10 and 8. My sister is allergic to fish. It’s not life-threatening, but it leaves her feeling very sick. Our aunt and uncle are wonderfully understanding of this and made sure to check with waiters, food labels, etc., despite my sister already doing so. On the other hand, our cousins don’t believe in allergies. They found it hilarious and amazing that my sister was “so good at faking sick,” because how could she tell there was fish hidden in there? It was all mashed up! The only thing gained from that incident was my sister missing out on most of dinner and our cousins getting a long, hard scolding.
Obviously, this disbelief and negligence is dangerous—not only to my sister but to anyone they meet who might have a life-threatening allergy. In fact, soon after the fish-hiding incident, they tried to hide my sister’s allergy medicine but it didn’t last long before I found out. How should I approach this? Should I let it go because they’re young, or should I wait for their parents to explain the reality of allergies yet again? Should I even get involved at all?
—Concerned Cousin