Pigs can be used for other purposes besides just food.
Pigs will eat waste food and garden scraps.
Some varieties of pigs have lost a lot of their maternal instinct.
Not all dietary restrictions allow for the consumption of pig products.
Pigs can grow very large and become harder to manage or interact with.
Pigs can be used to till soil and prepare garden areas.
Pigs are intelligent and can be trained.
Piglets can be sold as a possible source of income (as can the adults).
@papa-pepper and here's the proof:
proof-of-pig
@malos10