Everyone should be vegetarian

I don´t agree with the idea of everyone should be vegetarian, people need animal protein to their systems works well, most of the people make themselves vegetarian for the impact that this produces on global warming even because be a vegetarian or vegan is in the cool zone now, but most of them don´t know that thousands of years of evolution make us born as omnivorous for a reason, and don´t realize that the vegetal protein isn´t enough for our body to sustain the defense against the sicknesses. I can accept that it is more healthy for all being vegetarian, less fat percent, more variety of meals, but meat is a necessary risk at least for children and elderly people wich have a weak autoimmune system and several studies support this idea and endorse it. An example will be that if you feed a 1-year-old child without proteins, fat, and food high in carbohydrates you take the risk of the child present signs of malnutrition and sicknesses associated with this.

I think that be a vegetarian is a healthy choice but when you are a healthy human being if you are not you can take the risk to get sick because you are trying to reduce your impact on global warming or animal cruelty.