People who are allergic to seafood can simply not eat it. Seafood is not harmful to the public at large. Someone who was deathly allergic to peanuts could choose not to work at a Thai restaurant, for example.
I can not be in the same place as raw shrimp - I can not go into most local seafood markets because they keep the shrimp on ice, but in the open not in a glass case.
Seafood is not harmful to the public at large.
It is for some people.
Someone who was deathly allergic to peanuts could choose not to work at a Thai restaurant, for example.
Those afraid of tobacco smoke can simply choose not to work in an establishment that permits smoking, for example.