Indian Cow Addon (cant be killed)

Me and my friend was playing minecraft and when I killed a cow for beef, my friend said  "no. That's bad , we treat as God in real life, follow here too"That's good. In Hinduism cows are treated as god called Gomatha. NOTE:It's just an addon. Beef is prohibited in india but still non-hindus consume. Overall just an respect and addon. I'm not spreading hate against any one who eats or don't eat meat.