They manage fine in Europe. It’s a cultural issue. If you can’t be arsed working through the minor administrative hassle once (how often do you change the menu..) to not kill your customers then you shouldn’t be in this business.
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)".
If somebody orders, say, ribs, and mentions they are allergic to spices that are found in some barbecue sauces or spice rubs, the waiter isn't going to know (and the cook might not know) if those spices are in the dish, and especially won't know if they're present in a large enough amount to cause a reaction.
The FDA does require manufacturers to keep track of the most common allergens ( https://www.fda.gov/food/nutrition-food-labeling-and-critica... ), but if somebody has an uncommon allergy, they're on their own. Restaurants are regulated by state health departments instead of the USDA. California, I believe, has some allergen labeling requirements for its restaurants. Most large restaurants worry enough about liability that they disclose the information (for common allergens) voluntarily.