Sure. Some things are near-universally understood to be subjective and personal. Preference in ice cream is one of them. Many others are less so, though; moral values, for instance. Some even less; opinions about apparently-factual matters such as whether there are any gods, for instance.
(Even food preferences—a thing so notoriously subjective that the very word “taste” is used in other contexts to indicate something subjective and personal—can in fact give people that same sort of sense of superiority. I think mostly for reasons tied up with social status.)
Sure. Some things are near-universally understood to be subjective and personal. Preference in ice cream is one of them. Many others are less so, though; moral values, for instance. Some even less; opinions about apparently-factual matters such as whether there are any gods, for instance.
(Even food preferences—a thing so notoriously subjective that the very word “taste” is used in other contexts to indicate something subjective and personal—can in fact give people that same sort of sense of superiority. I think mostly for reasons tied up with social status.)