I think they are just trying to be inclusive. I have a different type of allergy and understand how serious they are but I really think the intent here was to make it possible to play with lactose intolerant sims. It is there to be ignored or not. I would guess that they will add likes and dislikes for foods eventually. As pointed out, allergies are not likes or dislikes. This is just a way for them to represent those who would like to add that to their sims either to represent themselves or to create their own stories.
Three traits is not a lot so I think it would be better to have 5 but maybe it would create performance issues.
Anyway, allergies are very serious but in this situation I am not sure how they could include this in a more sensitive way. Lactose intolerance is very common around the world. Additionally, with the new type of challenge there is more emphasis on customizing menus for each household.
I am just adding that playing with Sim characters isn't mocking anyone. Would it be preferable to be ignored?
