People tend to put too much emphasis on drawing conclusions from personal experience. There's really no need for me to kill a pig to realize that the meat which I eat once was a living creature.
Maybe not you. But could you agree, that if the majority would know what its really about, they would maybe not buy cheap supermarket meat every day - and therefor not support the mass slaughter facilities?
Knowing what meat is. Knowing what meat means, makes you buy your meat from local, fair butchers, makes you "celebrate" your once-in-a-week steak.
And since it's basically murder we are talking about, there should be a bit more conciousness in peoples minds. Especially when it comes to supporting or not supporting bad quality meat from animals that are, under the worst conditions, raised for the sole purpose of feeding fat, stupid, ignorant people.
Having to kill at least one of the thousands of animals a human being consumes during his or her lifetime, might achieve just that.
It definately did for me.
You got my point now or do i need to specify more...?