I like pig farming. It is the raising and breeding of domesticated pigs
Cool! I always wanted to have a farm at some point in my life. Is it challenging? 
Yes, it is not easy. Pigs are farmed solely for human consumption 
True, I don't know anyone drinking pig milk! Although I heard of a few people having them just as pets. But I guess when it gets old, they will have to put it down and get lots of bacon.
No, I have not seen that either. The meat is often refered to as bacon , gammon or pork