*shrug* people live in mental silos.
I know several people who check every ingredients list for allergy triggers, who hover in the kitchen and don't let you get on with it without re-re-re-informing you of their sensitivity list.
Annoying as these people are, and yes I've screamed in frustration, they're still less annoying than people who assume they are entitled to not inform themselves.
Completely aside from the
"Who, exactly, is dumb enough (or illegal enough) to be feeding eggnog to infants and young children? "