Part of the farm's role is educational, so the piggies/bacon link makes sense. People need to understand where their food comes from; then they can decide whether or not they want to eat it. Children are becoming very separated from the 'facts of life' food-wise these days e.g. 'Carrots come out of the dirty GROUND? Eeeww...'.
I can partially agree with you Greenwood, however children also need to be educated into healthy eating, and pork is not healthy eating. Hospitals give guidelines for diets after cancer, and pork is an unhealthy food, probably one of the worst for various reasons. Pigs are scavengers, and eat anything, digest their own urine, and toxins stay within the body as pigs hardly sweat to get rid of the toxins. Just one point to be considered, but children wouldn't understand all of that.
They might understand that eating bacon,suasages, ham and hot dogs for example increases risk from cancer, as stated by the World Health Organisation, but would they understand the implications of cancer ? Two pieces of bacon regularly increases chances of cancer by 9%
Not having a pop at you Greenwood, but it is something everyone should be aware of and rather than promoting pigs for eating, it should be discouraged if we wish to see cancer rates cut in the future.
We could of course bring them back on a massive scale for getting rid of all our human waste. That's what they are meant to do.