Look, i’m not some sort of a devil that hates people with allergies. Roughly 15% of my closest friends have dietary restrictions. But we kinda understand the problem and navigate it ourselves, rather than making it someone else’s problem. Really not a big deal.
They literally are, though.
Restaurants have a choice of refusing service to people with allergies (not allowed in many places; not a great idea anywhere), allowing those with restrictions to bring their own food, or just putting the bloody 2-minute effort of writing on the menu which ingredients they use.
Yes, people have died from restaurants doing the last option improperly.
"In Japan, according to the Ministry of Health, Labor and Welfare's vital statistics, about 50 cases of fatal anaphylaxis are reported each year.4,5 In 2020, the most frequent cause of fatal anaphylaxis was bee or wasp stings (13 cases), followed by drugs (8 cases) and foods (2 cases)".