i am not a vegetarian but you can become a vegetarian for many reasons
What reasons would a person become a vegetarian?
religion is one, it is strongly linked with a number of religions that originated in ancient India 
I was not aware of that. Could another reason be due to health issues? 
yes, red meat can lead to higher chance of cancer
Ok. How healthy is a vegetarian diet? 
i dont know actually, but i do know vegetariamism is linked to lower fat percentages when done right which leads to lower heart disease
How would vegetarians get their protein?