Vegetarianism is the practice of not eating meat. It may also include the abstraction of eating eggs or drinking milk. When talking about philosophy, people decide to be vegetarians because they feel that meat consumption is an act of unnecessary killing of sentient beings. One major objection of meat is that eating meat is not a necessity for most people living in the developed world, therefore the killing of sentient beings for the taste of their meat is not morally justifiable. This is because it is related for a non-human animal to feel pain and fear.