In this modern age, the trend of being a vegetarian or a vegan is increasing. This is not because people cannot afford to buy meat or other animal-based products, but it's because they have certain beliefs in eating a certain way.
Firstly, some people believe that a vegetarian diet is healthier than a meat-eating diet because we are always warned to reduce our fat intake and the vegetarian diet contains a lot less fat. In addition, it has been proved that by having a vegetarian diet, we can reduce our risk of dying of cancer, heart problems, or other diseases. Secondly, raising animals in factory farm conditions can is very cruel. The animals have to go through a variety of steps which all of them are very horrifying. Not only do they get killed but they also suffer a lot. Finally, as it is commonly known, vegetables are cheaper than meat all over the word. This would be an attractive factor for non-vegetarians to turn vegetarians or vegans- to spend less on eating.
However, research has shown that the nutrition we get from vegetables is sometimes not enough for a normal person’s body system. For example, the sufficient protein necessary for our body functioning every day cannot be gained if we don't eat enough vegetables. Consequently, unbalanced diet can lead us to muscular issues and even neurological problems. Also, if the majority of people living on Earth only eat vegetables, it can cause huge impact on meat vendors as they will soon be jobless and farmers will earn less according to such situation- which I wouldn't complain about that at all after what they have done to all of the poor animals.
Personally, I'm a vegan, but I think both sides have supporting ideas and factors, and it is in our decision as to decide whether we are in favour of eating a vegetarian diet, a vegan diet or no.