Generally domesticated animals do not need to worry about their food and other predators, and they have a lower probability of getting sick.
However, it seems there is no sharp difference between the life expectancy of wild pigs and domesticated pigs. Both can survive more than ten years if they are not killed.
Is it normal for domesticated animals to have a longer life span? Is it necessarily so?
Is there an example of a wild animal that statistically lives longer than its domesticated counterpart?